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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:23:40,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:23:40,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:23:40,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:23:40,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:23:40,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:23:40,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:23:40,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:23:40,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:23:40,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:23:40,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:23:40,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:23:40,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:23:40,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:23:40,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:23:40,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:23:40,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:23:40,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:23:40,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:23:40,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:23:40,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:23:40,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:23:40,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:23:40,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:23:40,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:23:40,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:23:40,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:23:40,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:23:40,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:23:40,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:23:40,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:23:40,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:23:40,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:23:40,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:23:40,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:23:40,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:23:40,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:23:40,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:23:40,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:23:40,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:23:40,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:23:40,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:23:40,221 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:23:40,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:23:40,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:23:40,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:23:40,224 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:23:40,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:23:40,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:23:40,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:23:40,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:23:40,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:23:40,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:23:40,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:23:40,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:23:40,227 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:23:40,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:23:40,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:23:40,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:23:40,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:23:40,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:23:40,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:23:40,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:23:40,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:23:40,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:23:40,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:23:40,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:23:40,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:23:40,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:23:40,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:23:40,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:23:40,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:23:40,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:23:40,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:23:40,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:23:40,556 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:23:40,557 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c [2019-10-07 14:23:40,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ab7e9d4/2ba5c068fbab454c98ab7f52c13d44cb/FLAG8d9186b4d [2019-10-07 14:23:41,402 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:23:41,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c [2019-10-07 14:23:41,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ab7e9d4/2ba5c068fbab454c98ab7f52c13d44cb/FLAG8d9186b4d [2019-10-07 14:23:41,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ab7e9d4/2ba5c068fbab454c98ab7f52c13d44cb [2019-10-07 14:23:41,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:23:41,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:23:41,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:23:41,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:23:41,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:23:41,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:23:41" (1/1) ... [2019-10-07 14:23:41,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225cf470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:41, skipping insertion in model container [2019-10-07 14:23:41,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:23:41" (1/1) ... [2019-10-07 14:23:41,547 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:23:41,637 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:23:42,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:23:42,398 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:23:42,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:23:42,676 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:23:42,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42 WrapperNode [2019-10-07 14:23:42,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:23:42,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:23:42,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:23:42,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:23:42,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (1/1) ... [2019-10-07 14:23:42,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:23:42,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:23:42,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:23:42,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:23:42,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (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 [2019-10-07 14:23:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:23:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:23:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:23:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:23:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:23:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:23:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:23:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:23:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:23:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:23:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:23:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:23:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:23:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:23:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:23:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:23:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:23:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:23:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:23:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:23:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:23:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:23:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:23:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:23:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:23:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:23:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:23:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:23:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:23:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:23:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:23:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:23:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:23:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:23:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:23:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:23:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:23:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:23:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:23:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:23:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:23:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-10-07 14:23:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:23:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:23:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:23:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-07 14:23:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:23:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:23:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:23:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:23:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:23:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:23:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:23:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:23:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:23:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:23:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:23:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:23:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:23:43,034 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:23:43,034 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:23:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:23:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:23:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:23:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:23:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:23:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:23:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:23:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:23:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:23:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:23:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:23:43,037 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:23:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:23:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:23:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:23:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:23:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:23:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:23:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:23:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:23:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:23:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:23:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:23:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:23:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:23:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:23:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:23:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:23:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:23:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:23:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:23:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:23:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:23:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:23:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:23:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:23:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:23:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:23:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:23:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:23:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:23:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:23:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:23:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:23:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:23:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:23:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:23:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:23:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:23:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:23:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:23:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:23:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:23:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:23:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:23:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:23:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:23:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:23:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:23:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:23:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:23:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:23:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:23:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:23:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:23:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:23:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:23:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:23:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:23:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:23:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:23:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:23:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:23:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:23:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:23:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-10-07 14:23:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:23:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:23:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-07 14:23:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:23:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:23:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:23:43,063 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:23:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:23:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:23:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:23:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:23:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:23:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:23:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:23:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:23:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:23:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:23:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:23:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:23:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:23:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:23:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:23:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:23:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:23:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:23:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:23:48,029 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:23:48,029 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:23:48,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:23:48 BoogieIcfgContainer [2019-10-07 14:23:48,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:23:48,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:23:48,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:23:48,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:23:48,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:23:41" (1/3) ... [2019-10-07 14:23:48,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa5eab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:23:48, skipping insertion in model container [2019-10-07 14:23:48,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:23:42" (2/3) ... [2019-10-07 14:23:48,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa5eab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:23:48, skipping insertion in model container [2019-10-07 14:23:48,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:23:48" (3/3) ... [2019-10-07 14:23:48,040 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product03.cil.c [2019-10-07 14:23:48,051 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:23:48,061 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:23:48,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:23:48,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:23:48,165 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:23:48,165 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:23:48,165 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:23:48,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:23:48,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:23:48,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:23:48,166 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:23:48,209 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states. [2019-10-07 14:23:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:23:48,229 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:23:48,230 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:23:48,233 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:23:48,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:23:48,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2099438583, now seen corresponding path program 1 times [2019-10-07 14:23:48,247 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:23:48,248 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:48,248 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:48,248 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:23:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:23:49,081 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:49,082 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:23:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:49,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:23:49,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:23:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:23:49,887 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:23:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:23:50,068 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:23:50,068 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2019-10-07 14:23:50,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:23:50,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:23:50,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:23:50,094 INFO L87 Difference]: Start difference. First operand 581 states. Second operand 3 states. [2019-10-07 14:23:50,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:23:50,330 INFO L93 Difference]: Finished difference Result 1265 states and 1950 transitions. [2019-10-07 14:23:50,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:23:50,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:23:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:23:50,362 INFO L225 Difference]: With dead ends: 1265 [2019-10-07 14:23:50,363 INFO L226 Difference]: Without dead ends: 816 [2019-10-07 14:23:50,373 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:23:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2019-10-07 14:23:50,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 803. [2019-10-07 14:23:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-07 14:23:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1222 transitions. [2019-10-07 14:23:50,535 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1222 transitions. Word has length 118 [2019-10-07 14:23:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:23:50,537 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1222 transitions. [2019-10-07 14:23:50,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:23:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1222 transitions. [2019-10-07 14:23:50,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:23:50,548 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:23:50,549 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:23:50,750 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:50,750 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:23:50,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:23:50,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1494326674, now seen corresponding path program 1 times [2019-10-07 14:23:50,751 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:23:50,751 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:50,751 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:50,752 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:23:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:23:51,138 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:51,139 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:23:51,139 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:23:51,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:23:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:23:51,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:23:51,141 INFO L87 Difference]: Start difference. First operand 803 states and 1222 transitions. Second operand 7 states. [2019-10-07 14:23:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:23:53,965 INFO L93 Difference]: Finished difference Result 3066 states and 4800 transitions. [2019-10-07 14:23:53,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:23:53,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2019-10-07 14:23:53,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:23:53,998 INFO L225 Difference]: With dead ends: 3066 [2019-10-07 14:23:53,999 INFO L226 Difference]: Without dead ends: 2294 [2019-10-07 14:23:54,007 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:23:54,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2019-10-07 14:23:54,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2219. [2019-10-07 14:23:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2019-10-07 14:23:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3464 transitions. [2019-10-07 14:23:54,171 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3464 transitions. Word has length 119 [2019-10-07 14:23:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:23:54,174 INFO L462 AbstractCegarLoop]: Abstraction has 2219 states and 3464 transitions. [2019-10-07 14:23:54,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:23:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3464 transitions. [2019-10-07 14:23:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:23:54,180 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:23:54,181 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:23:54,181 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:23:54,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:23:54,181 INFO L82 PathProgramCache]: Analyzing trace with hash 746786505, now seen corresponding path program 1 times [2019-10-07 14:23:54,182 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:23:54,182 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:54,182 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:54,182 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:54,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:23:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:23:54,443 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:54,443 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:23:54,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:55,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 2996 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:23:55,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:23:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 14:23:55,154 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:23:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:23:55,407 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:23:55,408 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2019-10-07 14:23:55,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:23:55,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:23:55,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:23:55,412 INFO L87 Difference]: Start difference. First operand 2219 states and 3464 transitions. Second operand 4 states. [2019-10-07 14:23:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:23:55,583 INFO L93 Difference]: Finished difference Result 4254 states and 6711 transitions. [2019-10-07 14:23:55,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 14:23:55,583 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:23:55,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:23:55,601 INFO L225 Difference]: With dead ends: 4254 [2019-10-07 14:23:55,602 INFO L226 Difference]: Without dead ends: 2066 [2019-10-07 14:23:55,617 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:23:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2019-10-07 14:23:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2016. [2019-10-07 14:23:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2019-10-07 14:23:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 3115 transitions. [2019-10-07 14:23:55,723 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 3115 transitions. Word has length 121 [2019-10-07 14:23:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:23:55,723 INFO L462 AbstractCegarLoop]: Abstraction has 2016 states and 3115 transitions. [2019-10-07 14:23:55,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:23:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 3115 transitions. [2019-10-07 14:23:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:23:55,728 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:23:55,728 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:23:55,942 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:55,943 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:23:55,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:23:55,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1903198849, now seen corresponding path program 1 times [2019-10-07 14:23:55,943 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:23:55,944 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:55,944 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:55,944 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:55,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:23:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:23:56,155 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:56,155 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:23:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:56,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 2983 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:23:56,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:23:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:23:56,893 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:23:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:23:57,024 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:23:57,025 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2019-10-07 14:23:57,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:23:57,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:23:57,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:23:57,028 INFO L87 Difference]: Start difference. First operand 2016 states and 3115 transitions. Second operand 3 states. [2019-10-07 14:23:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:23:57,220 INFO L93 Difference]: Finished difference Result 5044 states and 7944 transitions. [2019-10-07 14:23:57,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:23:57,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:23:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:23:57,248 INFO L225 Difference]: With dead ends: 5044 [2019-10-07 14:23:57,249 INFO L226 Difference]: Without dead ends: 3059 [2019-10-07 14:23:57,262 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:23:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2019-10-07 14:23:57,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2974. [2019-10-07 14:23:57,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2974 states. [2019-10-07 14:23:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 4625 transitions. [2019-10-07 14:23:57,453 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 4625 transitions. Word has length 119 [2019-10-07 14:23:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:23:57,454 INFO L462 AbstractCegarLoop]: Abstraction has 2974 states and 4625 transitions. [2019-10-07 14:23:57,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:23:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 4625 transitions. [2019-10-07 14:23:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:23:57,460 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:23:57,460 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:23:57,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:57,679 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:23:57,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:23:57,680 INFO L82 PathProgramCache]: Analyzing trace with hash -104889300, now seen corresponding path program 1 times [2019-10-07 14:23:57,680 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:23:57,680 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:57,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:57,681 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:23:57,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:23:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:57,913 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 14:23:57,913 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:23:57,915 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:23:57,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:23:58,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 2996 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 14:23:58,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:23:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 14:23:58,788 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:23:58,927 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:23:59,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:23:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:23:59,224 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:23:59,224 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 7] total 20 [2019-10-07 14:23:59,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:23:59,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:23:59,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:23:59,226 INFO L87 Difference]: Start difference. First operand 2974 states and 4625 transitions. Second operand 6 states. [2019-10-07 14:24:00,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:00,393 INFO L93 Difference]: Finished difference Result 7797 states and 12341 transitions. [2019-10-07 14:24:00,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:24:00,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2019-10-07 14:24:00,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:00,438 INFO L225 Difference]: With dead ends: 7797 [2019-10-07 14:24:00,438 INFO L226 Difference]: Without dead ends: 4854 [2019-10-07 14:24:00,465 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 232 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:24:00,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2019-10-07 14:24:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 4818. [2019-10-07 14:24:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4818 states. [2019-10-07 14:24:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 7367 transitions. [2019-10-07 14:24:00,717 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 7367 transitions. Word has length 120 [2019-10-07 14:24:00,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:00,720 INFO L462 AbstractCegarLoop]: Abstraction has 4818 states and 7367 transitions. [2019-10-07 14:24:00,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:24:00,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 7367 transitions. [2019-10-07 14:24:00,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:24:00,724 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:00,724 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:24:00,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:24:00,934 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:00,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:00,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1646523800, now seen corresponding path program 1 times [2019-10-07 14:24:00,935 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:00,935 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:00,935 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:00,936 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:01,218 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 14:24:01,218 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:01,219 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:24:01,219 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:24:01,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:24:01,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:24:01,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:24:01,220 INFO L87 Difference]: Start difference. First operand 4818 states and 7367 transitions. Second operand 10 states. [2019-10-07 14:24:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:04,368 INFO L93 Difference]: Finished difference Result 17022 states and 26706 transitions. [2019-10-07 14:24:04,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 14:24:04,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 125 [2019-10-07 14:24:04,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:04,522 INFO L225 Difference]: With dead ends: 17022 [2019-10-07 14:24:04,522 INFO L226 Difference]: Without dead ends: 12235 [2019-10-07 14:24:04,583 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:24:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12235 states. [2019-10-07 14:24:05,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12235 to 12080. [2019-10-07 14:24:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12080 states. [2019-10-07 14:24:05,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12080 states to 12080 states and 18752 transitions. [2019-10-07 14:24:05,374 INFO L78 Accepts]: Start accepts. Automaton has 12080 states and 18752 transitions. Word has length 125 [2019-10-07 14:24:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:05,377 INFO L462 AbstractCegarLoop]: Abstraction has 12080 states and 18752 transitions. [2019-10-07 14:24:05,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:24:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12080 states and 18752 transitions. [2019-10-07 14:24:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 14:24:05,381 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:05,381 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:24:05,382 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:05,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1902884276, now seen corresponding path program 1 times [2019-10-07 14:24:05,383 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:05,383 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:05,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:05,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:24:05,612 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:05,612 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:24:05,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:24:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:06,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 3026 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:24:06,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:24:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 14:24:06,326 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:24:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:24:06,614 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:24:06,614 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 9] total 17 [2019-10-07 14:24:06,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:24:06,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:24:06,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:24:06,615 INFO L87 Difference]: Start difference. First operand 12080 states and 18752 transitions. Second operand 7 states. [2019-10-07 14:24:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:09,192 INFO L93 Difference]: Finished difference Result 25422 states and 39436 transitions. [2019-10-07 14:24:09,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:24:09,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2019-10-07 14:24:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:09,284 INFO L225 Difference]: With dead ends: 25422 [2019-10-07 14:24:09,285 INFO L226 Difference]: Without dead ends: 13373 [2019-10-07 14:24:09,335 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:24:09,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13373 states. [2019-10-07 14:24:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13373 to 13326. [2019-10-07 14:24:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13326 states. [2019-10-07 14:24:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13326 states to 13326 states and 20435 transitions. [2019-10-07 14:24:10,931 INFO L78 Accepts]: Start accepts. Automaton has 13326 states and 20435 transitions. Word has length 131 [2019-10-07 14:24:10,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:10,935 INFO L462 AbstractCegarLoop]: Abstraction has 13326 states and 20435 transitions. [2019-10-07 14:24:10,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:24:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13326 states and 20435 transitions. [2019-10-07 14:24:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 14:24:10,939 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:10,939 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:24:11,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:24:11,163 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:11,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:11,163 INFO L82 PathProgramCache]: Analyzing trace with hash 724432837, now seen corresponding path program 1 times [2019-10-07 14:24:11,164 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:11,164 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:11,164 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:11,164 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:24:11,383 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:11,383 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:24:11,384 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:24:11,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:24:11,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:24:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:24:11,387 INFO L87 Difference]: Start difference. First operand 13326 states and 20435 transitions. Second operand 10 states. [2019-10-07 14:24:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:12,041 INFO L93 Difference]: Finished difference Result 24892 states and 38363 transitions. [2019-10-07 14:24:12,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:24:12,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 136 [2019-10-07 14:24:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:12,141 INFO L225 Difference]: With dead ends: 24892 [2019-10-07 14:24:12,142 INFO L226 Difference]: Without dead ends: 13570 [2019-10-07 14:24:12,191 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:24:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13570 states. [2019-10-07 14:24:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13570 to 13570. [2019-10-07 14:24:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13570 states. [2019-10-07 14:24:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13570 states to 13570 states and 20761 transitions. [2019-10-07 14:24:13,053 INFO L78 Accepts]: Start accepts. Automaton has 13570 states and 20761 transitions. Word has length 136 [2019-10-07 14:24:13,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:13,055 INFO L462 AbstractCegarLoop]: Abstraction has 13570 states and 20761 transitions. [2019-10-07 14:24:13,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:24:13,055 INFO L276 IsEmpty]: Start isEmpty. Operand 13570 states and 20761 transitions. [2019-10-07 14:24:13,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:24:13,059 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:13,059 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-07 14:24:13,060 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:13,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:13,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2029833286, now seen corresponding path program 1 times [2019-10-07 14:24:13,060 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:13,060 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:13,061 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:13,061 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:13,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:24:13,273 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:13,273 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:24:13,273 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:24:13,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:24:13,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:24:13,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:24:13,275 INFO L87 Difference]: Start difference. First operand 13570 states and 20761 transitions. Second operand 10 states. [2019-10-07 14:24:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:13,767 INFO L93 Difference]: Finished difference Result 25235 states and 38780 transitions. [2019-10-07 14:24:13,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:24:13,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 141 [2019-10-07 14:24:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:13,858 INFO L225 Difference]: With dead ends: 25235 [2019-10-07 14:24:13,859 INFO L226 Difference]: Without dead ends: 13725 [2019-10-07 14:24:13,907 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:24:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13725 states. [2019-10-07 14:24:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13725 to 13601. [2019-10-07 14:24:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13601 states. [2019-10-07 14:24:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13601 states to 13601 states and 20792 transitions. [2019-10-07 14:24:14,507 INFO L78 Accepts]: Start accepts. Automaton has 13601 states and 20792 transitions. Word has length 141 [2019-10-07 14:24:14,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:14,508 INFO L462 AbstractCegarLoop]: Abstraction has 13601 states and 20792 transitions. [2019-10-07 14:24:14,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:24:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 13601 states and 20792 transitions. [2019-10-07 14:24:14,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 14:24:14,513 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:14,513 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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] [2019-10-07 14:24:14,513 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:14,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:14,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1790494302, now seen corresponding path program 1 times [2019-10-07 14:24:14,514 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:14,514 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:14,514 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:14,515 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:14,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:24:14,809 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:14,810 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:24:14,810 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 14:24:14,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:24:14,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:24:14,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:24:14,812 INFO L87 Difference]: Start difference. First operand 13601 states and 20792 transitions. Second operand 14 states. [2019-10-07 14:24:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:23,905 INFO L93 Difference]: Finished difference Result 34506 states and 53793 transitions. [2019-10-07 14:24:23,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:24:23,906 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 140 [2019-10-07 14:24:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:24,038 INFO L225 Difference]: With dead ends: 34506 [2019-10-07 14:24:24,038 INFO L226 Difference]: Without dead ends: 24185 [2019-10-07 14:24:24,087 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:24:24,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24185 states. [2019-10-07 14:24:25,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24185 to 23605. [2019-10-07 14:24:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23605 states. [2019-10-07 14:24:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23605 states to 23605 states and 36349 transitions. [2019-10-07 14:24:25,096 INFO L78 Accepts]: Start accepts. Automaton has 23605 states and 36349 transitions. Word has length 140 [2019-10-07 14:24:25,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:25,097 INFO L462 AbstractCegarLoop]: Abstraction has 23605 states and 36349 transitions. [2019-10-07 14:24:25,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:24:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 23605 states and 36349 transitions. [2019-10-07 14:24:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 14:24:25,103 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:25,103 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 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] [2019-10-07 14:24:25,103 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:25,104 INFO L82 PathProgramCache]: Analyzing trace with hash 250321296, now seen corresponding path program 1 times [2019-10-07 14:24:25,104 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:25,104 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:25,104 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:25,105 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:25,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-07 14:24:25,315 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:25,316 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:24:25,316 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:24:25,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:24:25,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:24:25,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:24:25,319 INFO L87 Difference]: Start difference. First operand 23605 states and 36349 transitions. Second operand 8 states. [2019-10-07 14:24:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:26,706 INFO L93 Difference]: Finished difference Result 34054 states and 52564 transitions. [2019-10-07 14:24:26,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:24:26,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2019-10-07 14:24:26,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:26,871 INFO L225 Difference]: With dead ends: 34054 [2019-10-07 14:24:26,871 INFO L226 Difference]: Without dead ends: 23693 [2019-10-07 14:24:26,921 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:24:26,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23693 states. [2019-10-07 14:24:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23693 to 23647. [2019-10-07 14:24:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23647 states. [2019-10-07 14:24:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23647 states to 23647 states and 36377 transitions. [2019-10-07 14:24:28,317 INFO L78 Accepts]: Start accepts. Automaton has 23647 states and 36377 transitions. Word has length 167 [2019-10-07 14:24:28,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:28,317 INFO L462 AbstractCegarLoop]: Abstraction has 23647 states and 36377 transitions. [2019-10-07 14:24:28,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:24:28,318 INFO L276 IsEmpty]: Start isEmpty. Operand 23647 states and 36377 transitions. [2019-10-07 14:24:28,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-07 14:24:28,323 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:28,323 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1] [2019-10-07 14:24:28,324 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:28,324 INFO L82 PathProgramCache]: Analyzing trace with hash -312040258, now seen corresponding path program 1 times [2019-10-07 14:24:28,324 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:28,324 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:28,324 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:28,325 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-07 14:24:28,569 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:28,569 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:24:28,569 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 14:24:28,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:24:28,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:24:28,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:24:28,571 INFO L87 Difference]: Start difference. First operand 23647 states and 36377 transitions. Second operand 14 states. [2019-10-07 14:24:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:42,381 INFO L93 Difference]: Finished difference Result 48470 states and 77264 transitions. [2019-10-07 14:24:42,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:24:42,383 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 171 [2019-10-07 14:24:42,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:42,674 INFO L225 Difference]: With dead ends: 48470 [2019-10-07 14:24:42,675 INFO L226 Difference]: Without dead ends: 48439 [2019-10-07 14:24:42,704 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=238, Invalid=1654, Unknown=0, NotChecked=0, Total=1892 [2019-10-07 14:24:42,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48439 states. [2019-10-07 14:24:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48439 to 46908. [2019-10-07 14:24:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46908 states. [2019-10-07 14:24:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46908 states to 46908 states and 73144 transitions. [2019-10-07 14:24:44,963 INFO L78 Accepts]: Start accepts. Automaton has 46908 states and 73144 transitions. Word has length 171 [2019-10-07 14:24:44,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:24:44,964 INFO L462 AbstractCegarLoop]: Abstraction has 46908 states and 73144 transitions. [2019-10-07 14:24:44,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:24:44,964 INFO L276 IsEmpty]: Start isEmpty. Operand 46908 states and 73144 transitions. [2019-10-07 14:24:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-07 14:24:44,974 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:24:44,975 INFO L385 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:24:44,975 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:24:44,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:24:44,976 INFO L82 PathProgramCache]: Analyzing trace with hash -975033288, now seen corresponding path program 1 times [2019-10-07 14:24:44,976 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:24:44,976 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:44,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:44,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:24:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:24:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-07 14:24:45,182 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:24:45,183 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:24:45,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:24:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:24:45,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 3422 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-07 14:24:45,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:24:45,975 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:24:45,975 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:24:46,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:24:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-07 14:24:46,495 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:24:46,495 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 9] total 24 [2019-10-07 14:24:46,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:24:46,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:24:46,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-10-07 14:24:46,497 INFO L87 Difference]: Start difference. First operand 46908 states and 73144 transitions. Second operand 9 states. [2019-10-07 14:24:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:24:56,969 INFO L93 Difference]: Finished difference Result 116938 states and 185175 transitions. [2019-10-07 14:24:56,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 14:24:56,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 201 [2019-10-07 14:24:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:24:57,393 INFO L225 Difference]: With dead ends: 116938 [2019-10-07 14:24:57,393 INFO L226 Difference]: Without dead ends: 70061 [2019-10-07 14:24:57,552 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 392 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=1205, Unknown=0, NotChecked=0, Total=1406 [2019-10-07 14:24:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70061 states. [2019-10-07 14:24:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70061 to 68801. [2019-10-07 14:24:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68801 states. [2019-10-07 14:25:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68801 states to 68801 states and 107956 transitions. [2019-10-07 14:25:00,071 INFO L78 Accepts]: Start accepts. Automaton has 68801 states and 107956 transitions. Word has length 201 [2019-10-07 14:25:00,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:25:00,071 INFO L462 AbstractCegarLoop]: Abstraction has 68801 states and 107956 transitions. [2019-10-07 14:25:00,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:25:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 68801 states and 107956 transitions. [2019-10-07 14:25:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-07 14:25:00,086 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:25:00,086 INFO L385 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:25:00,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:00,295 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:25:00,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:25:00,295 INFO L82 PathProgramCache]: Analyzing trace with hash 301121965, now seen corresponding path program 1 times [2019-10-07 14:25:00,296 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:25:00,296 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:00,296 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:00,296 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:25:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-07 14:25:00,461 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:00,462 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:25:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:01,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:25:01,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:25:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-07 14:25:01,669 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:25:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-07 14:25:01,929 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:25:01,929 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 4 [2019-10-07 14:25:01,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:25:01,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:25:01,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:25:01,931 INFO L87 Difference]: Start difference. First operand 68801 states and 107956 transitions. Second operand 3 states. [2019-10-07 14:25:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:25:06,747 INFO L93 Difference]: Finished difference Result 143206 states and 226958 transitions. [2019-10-07 14:25:06,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:25:06,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2019-10-07 14:25:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:25:07,096 INFO L225 Difference]: With dead ends: 143206 [2019-10-07 14:25:07,096 INFO L226 Difference]: Without dead ends: 74436 [2019-10-07 14:25:07,226 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 425 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:25:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74436 states. [2019-10-07 14:25:09,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74436 to 73695. [2019-10-07 14:25:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73695 states. [2019-10-07 14:25:09,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73695 states to 73695 states and 115466 transitions. [2019-10-07 14:25:09,966 INFO L78 Accepts]: Start accepts. Automaton has 73695 states and 115466 transitions. Word has length 214 [2019-10-07 14:25:09,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:25:09,966 INFO L462 AbstractCegarLoop]: Abstraction has 73695 states and 115466 transitions. [2019-10-07 14:25:09,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:25:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 73695 states and 115466 transitions. [2019-10-07 14:25:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-07 14:25:09,980 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:25:09,980 INFO L385 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:25:10,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:10,189 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:25:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:25:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1092550843, now seen corresponding path program 1 times [2019-10-07 14:25:10,191 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:25:10,191 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:10,191 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:10,191 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:25:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-07 14:25:10,441 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:10,442 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:25:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:11,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 3480 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-07 14:25:11,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:25:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 14:25:11,187 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:25:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-07 14:25:11,629 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:25:11,629 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 10] total 18 [2019-10-07 14:25:11,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:25:11,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:25:11,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:25:11,631 INFO L87 Difference]: Start difference. First operand 73695 states and 115466 transitions. Second operand 9 states. [2019-10-07 14:25:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:25:18,198 INFO L93 Difference]: Finished difference Result 171563 states and 269648 transitions. [2019-10-07 14:25:18,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:25:18,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 219 [2019-10-07 14:25:18,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:25:18,710 INFO L225 Difference]: With dead ends: 171563 [2019-10-07 14:25:18,710 INFO L226 Difference]: Without dead ends: 118838 [2019-10-07 14:25:18,879 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:25:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118838 states. [2019-10-07 14:25:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118838 to 112933. [2019-10-07 14:25:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112933 states. [2019-10-07 14:25:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112933 states to 112933 states and 176702 transitions. [2019-10-07 14:25:23,294 INFO L78 Accepts]: Start accepts. Automaton has 112933 states and 176702 transitions. Word has length 219 [2019-10-07 14:25:23,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:25:23,294 INFO L462 AbstractCegarLoop]: Abstraction has 112933 states and 176702 transitions. [2019-10-07 14:25:23,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:25:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 112933 states and 176702 transitions. [2019-10-07 14:25:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-07 14:25:23,306 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:25:23,306 INFO L385 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:25:23,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:23,507 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:25:23,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:25:23,508 INFO L82 PathProgramCache]: Analyzing trace with hash -715361760, now seen corresponding path program 1 times [2019-10-07 14:25:23,508 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:25:23,509 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:23,509 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:23,509 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:25:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-10-07 14:25:23,805 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:23,805 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:25:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:24,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 3481 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 14:25:24,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:25:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 14:25:24,597 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:25:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-07 14:25:24,982 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:25:24,983 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17, 8] total 23 [2019-10-07 14:25:24,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:25:24,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:25:24,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:25:24,984 INFO L87 Difference]: Start difference. First operand 112933 states and 176702 transitions. Second operand 8 states. [2019-10-07 14:25:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:25:31,254 INFO L93 Difference]: Finished difference Result 160784 states and 252591 transitions. [2019-10-07 14:25:31,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:25:31,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 221 [2019-10-07 14:25:31,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:25:31,593 INFO L225 Difference]: With dead ends: 160784 [2019-10-07 14:25:31,593 INFO L226 Difference]: Without dead ends: 82937 [2019-10-07 14:25:31,752 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:25:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82937 states. [2019-10-07 14:25:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82937 to 82850. [2019-10-07 14:25:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82850 states. [2019-10-07 14:25:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82850 states to 82850 states and 129532 transitions. [2019-10-07 14:25:34,494 INFO L78 Accepts]: Start accepts. Automaton has 82850 states and 129532 transitions. Word has length 221 [2019-10-07 14:25:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:25:34,495 INFO L462 AbstractCegarLoop]: Abstraction has 82850 states and 129532 transitions. [2019-10-07 14:25:34,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:25:34,495 INFO L276 IsEmpty]: Start isEmpty. Operand 82850 states and 129532 transitions. [2019-10-07 14:25:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2019-10-07 14:25:34,510 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:25:34,511 INFO L385 BasicCegarLoop]: trace histogram [11, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:25:34,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:34,714 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:25:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:25:34,715 INFO L82 PathProgramCache]: Analyzing trace with hash 282073335, now seen corresponding path program 1 times [2019-10-07 14:25:34,715 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:25:34,715 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:34,716 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:34,716 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:25:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 23 proven. 28 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2019-10-07 14:25:34,972 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:34,973 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:25:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:35,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 4313 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:25:35,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:25:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2019-10-07 14:25:35,946 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:25:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2019-10-07 14:25:36,328 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:25:36,329 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2019-10-07 14:25:36,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:25:36,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:25:36,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:25:36,330 INFO L87 Difference]: Start difference. First operand 82850 states and 129532 transitions. Second operand 4 states. [2019-10-07 14:25:39,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:25:39,020 INFO L93 Difference]: Finished difference Result 160746 states and 252664 transitions. [2019-10-07 14:25:39,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 14:25:39,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 368 [2019-10-07 14:25:39,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:25:39,572 INFO L225 Difference]: With dead ends: 160746 [2019-10-07 14:25:39,572 INFO L226 Difference]: Without dead ends: 82893 [2019-10-07 14:25:39,840 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:25:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82893 states. [2019-10-07 14:25:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82893 to 82805. [2019-10-07 14:25:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82805 states. [2019-10-07 14:25:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82805 states to 82805 states and 129449 transitions. [2019-10-07 14:25:45,731 INFO L78 Accepts]: Start accepts. Automaton has 82805 states and 129449 transitions. Word has length 368 [2019-10-07 14:25:45,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:25:45,732 INFO L462 AbstractCegarLoop]: Abstraction has 82805 states and 129449 transitions. [2019-10-07 14:25:45,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:25:45,733 INFO L276 IsEmpty]: Start isEmpty. Operand 82805 states and 129449 transitions. [2019-10-07 14:25:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-07 14:25:45,755 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:25:45,755 INFO L385 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:25:45,967 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:45,967 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:25:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:25:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash -126320389, now seen corresponding path program 1 times [2019-10-07 14:25:45,969 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:25:45,969 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:45,969 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:45,969 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:25:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:25:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:46,605 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-07 14:25:46,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:25:46,606 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:25:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:25:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:25:47,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-07 14:25:47,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:25:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 136 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-07 14:25:48,105 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:25:48,538 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:25:49,071 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:25:49,535 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:25:49,584 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:25:49,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:25:49,586 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:25:49,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:25:49,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:25:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-07 14:25:49,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:25:49,695 INFO L162 IcfgInterpreter]: Started Sifa with 132 locations of interest [2019-10-07 14:25:49,695 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:25:49,702 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:25:49,711 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:25:49,711 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:26:36,461 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 752 [2019-10-07 14:26:41,134 WARN L191 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:26:41,578 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 838 [2019-10-07 14:26:41,956 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 838 [2019-10-07 14:26:42,208 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 838 [2019-10-07 14:26:42,981 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:43,420 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:43,904 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:44,392 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:45,479 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1018 DAG size of output: 1016 [2019-10-07 14:26:46,201 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:46,690 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:47,122 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:47,576 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:48,062 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:26:48,079 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 373 for LOIs [2019-10-07 14:26:48,276 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 721 [2019-10-07 14:26:48,393 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 721 [2019-10-07 14:26:48,997 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 899 [2019-10-07 14:26:48,999 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1062 for LOIs [2019-10-07 14:26:49,415 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:49,846 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:49,954 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:26:50,652 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:26:51,090 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:51,800 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:51,907 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:26:52,592 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:26:53,051 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:53,476 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:53,703 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:26:54,786 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:26:55,903 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1062 [2019-10-07 14:26:56,325 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:56,516 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:26:57,220 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:26:57,662 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:58,380 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:26:58,487 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:26:59,178 WARN L191 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:26:59,593 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:00,015 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:00,126 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:01,107 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:01,530 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:01,950 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:02,733 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:03,152 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:03,857 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:03,961 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:04,642 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:05,058 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:05,488 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:05,592 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:06,561 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:06,980 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:07,399 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:07,505 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:08,196 WARN L191 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:08,623 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:09,041 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:09,427 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:10,117 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:10,535 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:10,962 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:11,066 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:11,759 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:12,460 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:12,881 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:27:12,986 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:13,668 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:14,428 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:15,392 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:15,503 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:16,204 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:18,294 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:27:19,259 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:19,370 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:20,077 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:20,766 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:21,747 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:21,850 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:22,534 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:23,305 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:23,996 WARN L191 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:24,106 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:25,065 WARN L191 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:26,675 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:27,480 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:27,595 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:28,296 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:29,002 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:29,708 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:29,812 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:30,506 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:31,207 WARN L191 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:27:31,910 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:27:32,050 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:32,755 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:27:33,477 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:34,189 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:34,300 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:35,013 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:35,751 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:36,481 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:36,602 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:37,308 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:38,030 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:38,751 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:38,870 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:39,577 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:40,290 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:41,006 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:41,112 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:41,837 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:27:43,126 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:27:43,819 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:44,051 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:45,157 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:46,423 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:27:47,120 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:47,302 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:48,010 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:48,717 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:49,423 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:49,527 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:27:50,234 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:27:51,558 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:27:52,259 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:27:52,372 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:53,087 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:53,833 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:54,540 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:54,652 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:55,372 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:56,654 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:27:57,361 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:27:57,468 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:27:58,192 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:27:59,414 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1218 [2019-10-07 14:28:00,144 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:28:00,256 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:00,969 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:02,274 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1229 DAG size of output: 1220 [2019-10-07 14:28:02,993 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:03,111 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:03,815 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:28:05,117 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:05,839 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:05,949 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:06,663 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:07,949 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:08,653 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:08,766 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:09,481 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:10,185 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:10,920 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:11,025 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:11,737 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:13,038 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:13,748 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:13,861 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:14,563 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:15,827 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:16,541 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:16,652 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:17,366 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:18,070 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:18,769 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:18,874 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:19,585 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:20,330 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:21,048 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:21,159 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:21,867 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:22,610 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:23,319 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:23,428 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:24,136 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:24,846 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:25,547 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:25,652 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:26,367 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:27,572 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:28:28,290 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:28:28,402 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:29,108 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:30,398 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:31,101 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:31,224 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:31,931 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:33,191 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:33,889 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:33,997 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:34,689 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:35,394 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:36,095 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:36,202 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:36,895 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:38,200 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:28:38,907 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:28:39,016 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:39,733 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:40,450 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:41,161 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:41,305 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:42,019 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:43,271 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:28:43,975 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:28:44,084 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:44,789 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:46,058 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1220 [2019-10-07 14:28:46,755 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:46,869 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:47,566 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:28:48,766 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1229 DAG size of output: 1222 [2019-10-07 14:28:49,487 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:28:49,599 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:28:50,307 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:28:51,581 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:52,281 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:52,394 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:53,090 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:54,355 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:28:55,060 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:55,168 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:55,885 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:56,592 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:57,295 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:57,402 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:28:58,106 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:28:59,395 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:29:00,103 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:29:00,213 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:00,922 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:01,652 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:02,359 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:02,471 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:03,171 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:04,422 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1218 [2019-10-07 14:29:05,110 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1218 [2019-10-07 14:29:05,215 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:05,920 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:07,121 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1220 [2019-10-07 14:29:07,834 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:07,944 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:08,654 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:09,961 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1229 DAG size of output: 1222 [2019-10-07 14:29:10,665 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:29:10,777 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:11,475 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:29:12,765 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1229 DAG size of output: 1227 [2019-10-07 14:29:13,471 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:29:13,581 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:14,287 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:29:15,552 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1229 DAG size of output: 1227 [2019-10-07 14:29:16,262 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:29:16,371 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:17,081 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:29:18,372 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:29:19,079 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:19,191 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:29:19,900 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:21,162 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:29:21,869 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:21,983 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:29:22,685 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:23,395 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:24,102 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:24,892 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:25,614 WARN L191 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:26,314 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:26,421 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:27,115 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:27,927 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:28,622 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:28,738 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 425 [2019-10-07 14:29:29,441 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:29:30,699 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:29:31,397 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:32,191 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:33,653 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1218 DAG size of output: 1216 [2019-10-07 14:29:34,367 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:34,481 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:29:35,175 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:35,181 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1080 for LOIs [2019-10-07 14:29:35,634 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:29:36,091 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:29:36,196 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:29:36,894 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:36,906 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1032 for LOIs [2019-10-07 14:29:37,301 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:29:37,681 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:29:37,787 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-10-07 14:29:38,501 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1216 [2019-10-07 14:29:38,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:29:38,773 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:29:38,779 INFO L168 Benchmark]: Toolchain (without parser) took 357255.85 ms. Allocated memory was 136.8 MB in the beginning and 3.3 GB in the end (delta: 3.2 GB). Free memory was 98.5 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:29:38,780 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:29:38,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1149.17 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 98.3 MB in the beginning and 140.6 MB in the end (delta: -42.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:29:38,780 INFO L168 Benchmark]: Boogie Preprocessor took 255.16 ms. Allocated memory is still 201.3 MB. Free memory was 140.6 MB in the beginning and 131.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:29:38,781 INFO L168 Benchmark]: RCFGBuilder took 5097.13 ms. Allocated memory was 201.3 MB in the beginning and 311.4 MB in the end (delta: 110.1 MB). Free memory was 131.2 MB in the beginning and 76.7 MB in the end (delta: 54.5 MB). Peak memory consumption was 164.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:29:38,781 INFO L168 Benchmark]: TraceAbstraction took 350744.81 ms. Allocated memory was 311.4 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 76.7 MB in the beginning and 1.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:29:38,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1149.17 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 98.3 MB in the beginning and 140.6 MB in the end (delta: -42.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 255.16 ms. Allocated memory is still 201.3 MB. Free memory was 140.6 MB in the beginning and 131.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5097.13 ms. Allocated memory was 201.3 MB in the beginning and 311.4 MB in the end (delta: 110.1 MB). Free memory was 131.2 MB in the beginning and 76.7 MB in the end (delta: 54.5 MB). Peak memory consumption was 164.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 350744.81 ms. Allocated memory was 311.4 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 76.7 MB in the beginning and 1.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...