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 -i ../../../trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:18:42,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:18:42,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:18:42,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:18:42,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:18:42,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:18:42,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:18:42,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:18:42,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:18:42,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:18:42,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:18:42,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:18:42,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:18:42,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:18:42,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:18:42,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:18:42,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:18:42,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:18:42,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:18:42,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:18:42,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:18:42,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:18:42,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:18:42,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:18:42,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:18:42,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:18:42,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:18:42,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:18:42,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:18:42,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:18:42,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:18:42,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:18:42,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:18:42,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:18:42,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:18:42,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:18:42,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:18:42,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:18:42,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:18:42,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:18:42,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:18:42,218 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 [2019-10-14 23:18:42,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:18:42,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:18:42,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:18:42,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:18:42,234 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:18:42,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:18:42,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:18:42,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:18:42,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:18:42,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:18:42,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:18:42,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:18:42,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:18:42,235 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:18:42,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:18:42,236 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:18:42,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:18:42,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:18:42,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:18:42,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:18:42,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:18:42,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:18:42,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:18:42,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:18:42,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:18:42,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:18:42,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:18:42,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:18:42,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:18:42,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:18:42,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:18:42,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:18:42,558 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:18:42,558 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:18:42,559 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c [2019-10-14 23:18:42,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca608b9ff/5698736662db4c51b912d2af91560054/FLAG77ad082d5 [2019-10-14 23:18:43,274 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:18:43,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c [2019-10-14 23:18:43,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca608b9ff/5698736662db4c51b912d2af91560054/FLAG77ad082d5 [2019-10-14 23:18:43,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca608b9ff/5698736662db4c51b912d2af91560054 [2019-10-14 23:18:43,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:18:43,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:18:43,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:18:43,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:18:43,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:18:43,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:18:43" (1/1) ... [2019-10-14 23:18:43,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31959f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:43, skipping insertion in model container [2019-10-14 23:18:43,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:18:43" (1/1) ... [2019-10-14 23:18:43,545 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:18:43,632 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:18:44,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:18:44,340 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:18:44,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:18:44,629 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:18:44,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44 WrapperNode [2019-10-14 23:18:44,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:18:44,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:18:44,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:18:44,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:18:44,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (1/1) ... [2019-10-14 23:18:44,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:18:44,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:18:44,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:18:44,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:18:44,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (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 [2019-10-14 23:18:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:18:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:18:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:18:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:18:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:18:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:18:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:18:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:18:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:18:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:18:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:18:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:18:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:18:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:18:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:18:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:18:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:18:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:18:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-14 23:18:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:18:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-14 23:18:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-14 23:18:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:18:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:18:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:18:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:18:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:18:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:18:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:18:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:18:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:18:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:18:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-14 23:18:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:18:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:18:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:18:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-14 23:18:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:18:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:18:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:18:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:18:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:18:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:18:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__1 [2019-10-14 23:18:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__2 [2019-10-14 23:18:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:18:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:18:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:18:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:18:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:18:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:18:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:18:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:18:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:18:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:18:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:18:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:18:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:18:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:18:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:18:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:18:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:18:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:18:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:18:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:18:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:18:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:18:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:18:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:18:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:18:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:18:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:18:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:18:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:18:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:18:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:18:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:18:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:18:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:18:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:18:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:18:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:18:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:18:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:18:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:18:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:18:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:18:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:18:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:18:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:18:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:18:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:18:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:18:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:18:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:18:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:18:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:18:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:18:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:18:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:18:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:18:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:18:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:18:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:18:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:18:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:18:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:18:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-14 23:18:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-14 23:18:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-14 23:18:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:18:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:18:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:18:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:18:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:18:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-14 23:18:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:18:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:18:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-14 23:18:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:18:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:18:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:18:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__1 [2019-10-14 23:18:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__2 [2019-10-14 23:18:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:18:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:18:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:18:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:18:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:18:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:18:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:18:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:18:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:18:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:18:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:18:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:18:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:18:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:18:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:18:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:18:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:18:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:18:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:18:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:18:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:18:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:18:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:18:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:18:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:18:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:18:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:18:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:18:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:18:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:18:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:18:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:18:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:18:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:18:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:18:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:18:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:18:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:18:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:18:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:18:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:18:47,240 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:18:47,241 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:18:47,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:18:47 BoogieIcfgContainer [2019-10-14 23:18:47,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:18:47,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:18:47,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:18:47,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:18:47,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:18:43" (1/3) ... [2019-10-14 23:18:47,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc9559b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:18:47, skipping insertion in model container [2019-10-14 23:18:47,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:18:44" (2/3) ... [2019-10-14 23:18:47,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc9559b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:18:47, skipping insertion in model container [2019-10-14 23:18:47,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:18:47" (3/3) ... [2019-10-14 23:18:47,255 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product29.cil.c [2019-10-14 23:18:47,270 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:18:47,282 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:18:47,297 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:18:47,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:18:47,353 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:18:47,353 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:18:47,354 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:18:47,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:18:47,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:18:47,354 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:18:47,354 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:18:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states. [2019-10-14 23:18:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-14 23:18:47,441 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:18:47,442 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:18:47,445 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:18:47,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:18:47,452 INFO L82 PathProgramCache]: Analyzing trace with hash -332119901, now seen corresponding path program 1 times [2019-10-14 23:18:47,462 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:18:47,463 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114695018] [2019-10-14 23:18:47,463 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:47,463 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:47,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:18:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,167 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:18:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,402 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-14 23:18:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-14 23:18:49,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114695018] [2019-10-14 23:18:49,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578444928] [2019-10-14 23:18:49,849 INFO L94 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 [2019-10-14 23:18:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:50,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-14 23:18:50,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:18:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-14 23:18:50,441 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:18:50,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 12 [2019-10-14 23:18:50,442 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932390646] [2019-10-14 23:18:50,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:18:50,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:18:50,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:18:50,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:18:50,520 INFO L87 Difference]: Start difference. First operand 804 states. Second operand 2 states. [2019-10-14 23:18:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:18:50,670 INFO L93 Difference]: Finished difference Result 1301 states and 2111 transitions. [2019-10-14 23:18:50,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:18:50,672 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-14 23:18:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:18:50,710 INFO L225 Difference]: With dead ends: 1301 [2019-10-14 23:18:50,710 INFO L226 Difference]: Without dead ends: 658 [2019-10-14 23:18:50,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:18:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2019-10-14 23:18:50,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2019-10-14 23:18:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2019-10-14 23:18:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1047 transitions. [2019-10-14 23:18:50,848 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1047 transitions. Word has length 152 [2019-10-14 23:18:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:18:50,851 INFO L462 AbstractCegarLoop]: Abstraction has 658 states and 1047 transitions. [2019-10-14 23:18:50,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:18:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1047 transitions. [2019-10-14 23:18:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-14 23:18:50,859 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:18:50,860 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:18:51,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:18:51,062 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:18:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:18:51,063 INFO L82 PathProgramCache]: Analyzing trace with hash 474844739, now seen corresponding path program 1 times [2019-10-14 23:18:51,063 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:18:51,064 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320833822] [2019-10-14 23:18:51,064 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:51,064 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:51,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:18:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,215 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:18:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,421 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-14 23:18:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:52,671 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-14 23:18:52,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320833822] [2019-10-14 23:18:52,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883638165] [2019-10-14 23:18:52,672 INFO L94 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 [2019-10-14 23:18:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:53,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 2981 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:18:53,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:18:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:18:53,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:18:53,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2019-10-14 23:18:53,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441150054] [2019-10-14 23:18:53,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:18:53,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:18:53,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:18:53,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:18:53,339 INFO L87 Difference]: Start difference. First operand 658 states and 1047 transitions. Second operand 4 states. [2019-10-14 23:18:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:18:53,490 INFO L93 Difference]: Finished difference Result 1299 states and 2084 transitions. [2019-10-14 23:18:53,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:18:53,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2019-10-14 23:18:53,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:18:53,497 INFO L225 Difference]: With dead ends: 1299 [2019-10-14 23:18:53,498 INFO L226 Difference]: Without dead ends: 667 [2019-10-14 23:18:53,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:18:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-14 23:18:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2019-10-14 23:18:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2019-10-14 23:18:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1061 transitions. [2019-10-14 23:18:53,547 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1061 transitions. Word has length 152 [2019-10-14 23:18:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:18:53,549 INFO L462 AbstractCegarLoop]: Abstraction has 667 states and 1061 transitions. [2019-10-14 23:18:53,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:18:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1061 transitions. [2019-10-14 23:18:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-14 23:18:53,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:18:53,558 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:18:53,767 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:18:53,767 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:18:53,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:18:53,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1998614119, now seen corresponding path program 1 times [2019-10-14 23:18:53,768 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:18:53,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415030990] [2019-10-14 23:18:53,769 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:53,769 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:53,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:18:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,730 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:18:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:18:55,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415030990] [2019-10-14 23:18:55,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658851988] [2019-10-14 23:18:55,120 INFO L94 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 [2019-10-14 23:18:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:55,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 2983 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:18:55,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:18:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:18:55,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:18:55,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-10-14 23:18:55,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241677141] [2019-10-14 23:18:55,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:18:55,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:18:55,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:18:55,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:18:55,849 INFO L87 Difference]: Start difference. First operand 667 states and 1061 transitions. Second operand 7 states. [2019-10-14 23:18:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:18:56,058 INFO L93 Difference]: Finished difference Result 1317 states and 2109 transitions. [2019-10-14 23:18:56,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:18:56,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2019-10-14 23:18:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:18:56,067 INFO L225 Difference]: With dead ends: 1317 [2019-10-14 23:18:56,067 INFO L226 Difference]: Without dead ends: 678 [2019-10-14 23:18:56,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:18:56,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-10-14 23:18:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 674. [2019-10-14 23:18:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2019-10-14 23:18:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1073 transitions. [2019-10-14 23:18:56,119 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1073 transitions. Word has length 154 [2019-10-14 23:18:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:18:56,120 INFO L462 AbstractCegarLoop]: Abstraction has 674 states and 1073 transitions. [2019-10-14 23:18:56,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:18:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1073 transitions. [2019-10-14 23:18:56,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-14 23:18:56,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:18:56,127 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:18:56,343 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:18:56,343 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:18:56,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:18:56,344 INFO L82 PathProgramCache]: Analyzing trace with hash -118777742, now seen corresponding path program 1 times [2019-10-14 23:18:56,344 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:18:56,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15093861] [2019-10-14 23:18:56,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:56,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:56,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:18:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,194 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:18:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-14 23:18:57,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15093861] [2019-10-14 23:18:57,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895058669] [2019-10-14 23:18:57,713 INFO L94 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 [2019-10-14 23:18:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:58,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:18:58,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:18:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:18:58,287 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:18:58,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2019-10-14 23:18:58,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559629827] [2019-10-14 23:18:58,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:18:58,289 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:18:58,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:18:58,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:18:58,291 INFO L87 Difference]: Start difference. First operand 674 states and 1073 transitions. Second operand 4 states. [2019-10-14 23:18:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:18:58,393 INFO L93 Difference]: Finished difference Result 1333 states and 2134 transitions. [2019-10-14 23:18:58,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:18:58,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2019-10-14 23:18:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:18:58,401 INFO L225 Difference]: With dead ends: 1333 [2019-10-14 23:18:58,401 INFO L226 Difference]: Without dead ends: 685 [2019-10-14 23:18:58,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:18:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-10-14 23:18:58,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 683. [2019-10-14 23:18:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-14 23:18:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1081 transitions. [2019-10-14 23:18:58,439 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1081 transitions. Word has length 155 [2019-10-14 23:18:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:18:58,440 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 1081 transitions. [2019-10-14 23:18:58,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:18:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1081 transitions. [2019-10-14 23:18:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-14 23:18:58,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:18:58,450 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:18:58,665 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:18:58,666 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:18:58,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:18:58,667 INFO L82 PathProgramCache]: Analyzing trace with hash 31725172, now seen corresponding path program 1 times [2019-10-14 23:18:58,667 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:18:58,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517901052] [2019-10-14 23:18:58,668 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:58,668 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:18:58,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:18:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,758 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:18:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:18:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-14 23:19:00,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517901052] [2019-10-14 23:19:00,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080491186] [2019-10-14 23:19:00,144 INFO L94 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 [2019-10-14 23:19:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:00,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:19:00,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:19:00,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:00,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2019-10-14 23:19:00,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477880094] [2019-10-14 23:19:00,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:19:00,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:00,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:19:00,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:19:00,814 INFO L87 Difference]: Start difference. First operand 683 states and 1081 transitions. Second operand 7 states. [2019-10-14 23:19:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:00,967 INFO L93 Difference]: Finished difference Result 1334 states and 2125 transitions. [2019-10-14 23:19:00,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:19:00,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2019-10-14 23:19:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:00,974 INFO L225 Difference]: With dead ends: 1334 [2019-10-14 23:19:00,974 INFO L226 Difference]: Without dead ends: 692 [2019-10-14 23:19:00,979 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:19:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2019-10-14 23:19:01,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 683. [2019-10-14 23:19:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-14 23:19:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1081 transitions. [2019-10-14 23:19:01,010 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1081 transitions. Word has length 155 [2019-10-14 23:19:01,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:01,010 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 1081 transitions. [2019-10-14 23:19:01,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:19:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1081 transitions. [2019-10-14 23:19:01,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-14 23:19:01,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:01,016 INFO L380 BasicCegarLoop]: trace histogram [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, 1] [2019-10-14 23:19:01,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:01,230 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:01,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:01,230 INFO L82 PathProgramCache]: Analyzing trace with hash -615340944, now seen corresponding path program 1 times [2019-10-14 23:19:01,231 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:01,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257971115] [2019-10-14 23:19:01,231 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:01,231 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:01,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,194 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:19:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:19:02,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257971115] [2019-10-14 23:19:02,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480009460] [2019-10-14 23:19:02,575 INFO L94 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 [2019-10-14 23:19:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:03,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:19:03,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-14 23:19:03,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:03,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2019-10-14 23:19:03,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256832550] [2019-10-14 23:19:03,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:19:03,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:03,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:19:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:19:03,163 INFO L87 Difference]: Start difference. First operand 683 states and 1081 transitions. Second operand 4 states. [2019-10-14 23:19:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:03,461 INFO L93 Difference]: Finished difference Result 1367 states and 2195 transitions. [2019-10-14 23:19:03,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:19:03,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2019-10-14 23:19:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:03,469 INFO L225 Difference]: With dead ends: 1367 [2019-10-14 23:19:03,470 INFO L226 Difference]: Without dead ends: 725 [2019-10-14 23:19:03,474 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:19:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2019-10-14 23:19:03,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 722. [2019-10-14 23:19:03,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2019-10-14 23:19:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1154 transitions. [2019-10-14 23:19:03,507 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1154 transitions. Word has length 158 [2019-10-14 23:19:03,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:03,507 INFO L462 AbstractCegarLoop]: Abstraction has 722 states and 1154 transitions. [2019-10-14 23:19:03,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:19:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1154 transitions. [2019-10-14 23:19:03,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-14 23:19:03,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:03,514 INFO L380 BasicCegarLoop]: trace histogram [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, 1] [2019-10-14 23:19:03,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:03,722 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:03,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:03,722 INFO L82 PathProgramCache]: Analyzing trace with hash -35711704, now seen corresponding path program 1 times [2019-10-14 23:19:03,723 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:03,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085658950] [2019-10-14 23:19:03,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:03,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:03,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,854 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:19:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-14 23:19:05,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085658950] [2019-10-14 23:19:05,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681003146] [2019-10-14 23:19:05,222 INFO L94 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 [2019-10-14 23:19:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:05,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:19:05,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-14 23:19:05,844 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:05,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2019-10-14 23:19:05,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882310019] [2019-10-14 23:19:05,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:19:05,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:05,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:19:05,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:19:05,854 INFO L87 Difference]: Start difference. First operand 722 states and 1154 transitions. Second operand 4 states. [2019-10-14 23:19:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:05,951 INFO L93 Difference]: Finished difference Result 1391 states and 2241 transitions. [2019-10-14 23:19:05,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:19:05,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-10-14 23:19:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:05,959 INFO L225 Difference]: With dead ends: 1391 [2019-10-14 23:19:05,959 INFO L226 Difference]: Without dead ends: 722 [2019-10-14 23:19:05,964 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:19:05,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2019-10-14 23:19:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2019-10-14 23:19:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2019-10-14 23:19:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1149 transitions. [2019-10-14 23:19:06,001 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1149 transitions. Word has length 160 [2019-10-14 23:19:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:06,001 INFO L462 AbstractCegarLoop]: Abstraction has 722 states and 1149 transitions. [2019-10-14 23:19:06,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:19:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1149 transitions. [2019-10-14 23:19:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-14 23:19:06,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:06,008 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:19:06,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:06,215 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:06,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1690094261, now seen corresponding path program 1 times [2019-10-14 23:19:06,216 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:06,216 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521409061] [2019-10-14 23:19:06,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:06,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:06,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,563 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:19:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,785 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-14 23:19:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-14 23:19:08,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521409061] [2019-10-14 23:19:08,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525069329] [2019-10-14 23:19:08,103 INFO L94 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 [2019-10-14 23:19:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:08,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 2989 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:19:08,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:19:08,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:08,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-10-14 23:19:08,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355890237] [2019-10-14 23:19:08,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:19:08,869 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:08,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:19:08,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:19:08,870 INFO L87 Difference]: Start difference. First operand 722 states and 1149 transitions. Second operand 7 states. [2019-10-14 23:19:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:09,019 INFO L93 Difference]: Finished difference Result 1359 states and 2173 transitions. [2019-10-14 23:19:09,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:19:09,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2019-10-14 23:19:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:09,028 INFO L225 Difference]: With dead ends: 1359 [2019-10-14 23:19:09,028 INFO L226 Difference]: Without dead ends: 736 [2019-10-14 23:19:09,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:19:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-10-14 23:19:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 729. [2019-10-14 23:19:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2019-10-14 23:19:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1160 transitions. [2019-10-14 23:19:09,076 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1160 transitions. Word has length 161 [2019-10-14 23:19:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:09,078 INFO L462 AbstractCegarLoop]: Abstraction has 729 states and 1160 transitions. [2019-10-14 23:19:09,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:19:09,078 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1160 transitions. [2019-10-14 23:19:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-14 23:19:09,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:09,087 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:19:09,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:09,300 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:09,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:09,301 INFO L82 PathProgramCache]: Analyzing trace with hash -696135748, now seen corresponding path program 1 times [2019-10-14 23:19:09,301 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:09,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546113422] [2019-10-14 23:19:09,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:09,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:09,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,385 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:19:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:19:10,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546113422] [2019-10-14 23:19:10,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263076980] [2019-10-14 23:19:10,731 INFO L94 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 [2019-10-14 23:19:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:11,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 2990 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:19:11,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:11,391 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-14 23:19:11,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:11,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-10-14 23:19:11,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435309349] [2019-10-14 23:19:11,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:19:11,393 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:11,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:19:11,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:19:11,393 INFO L87 Difference]: Start difference. First operand 729 states and 1160 transitions. Second operand 7 states. [2019-10-14 23:19:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:11,546 INFO L93 Difference]: Finished difference Result 1359 states and 2172 transitions. [2019-10-14 23:19:11,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:19:11,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2019-10-14 23:19:11,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:11,554 INFO L225 Difference]: With dead ends: 1359 [2019-10-14 23:19:11,554 INFO L226 Difference]: Without dead ends: 736 [2019-10-14 23:19:11,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:19:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-10-14 23:19:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 726. [2019-10-14 23:19:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2019-10-14 23:19:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1154 transitions. [2019-10-14 23:19:11,591 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1154 transitions. Word has length 162 [2019-10-14 23:19:11,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:11,592 INFO L462 AbstractCegarLoop]: Abstraction has 726 states and 1154 transitions. [2019-10-14 23:19:11,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:19:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1154 transitions. [2019-10-14 23:19:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-14 23:19:11,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:11,600 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:19:11,808 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:11,808 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:11,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1199463028, now seen corresponding path program 1 times [2019-10-14 23:19:11,809 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:11,809 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186826189] [2019-10-14 23:19:11,809 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:11,809 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:11,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,755 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:19:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-14 23:19:13,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186826189] [2019-10-14 23:19:13,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332246472] [2019-10-14 23:19:13,098 INFO L94 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 [2019-10-14 23:19:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:13,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 2990 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:19:13,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-14 23:19:13,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:13,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2019-10-14 23:19:13,700 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717506693] [2019-10-14 23:19:13,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:19:13,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:13,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:19:13,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:19:13,702 INFO L87 Difference]: Start difference. First operand 726 states and 1154 transitions. Second operand 4 states. [2019-10-14 23:19:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:13,783 INFO L93 Difference]: Finished difference Result 1395 states and 2241 transitions. [2019-10-14 23:19:13,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:19:13,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 162 [2019-10-14 23:19:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:13,789 INFO L225 Difference]: With dead ends: 1395 [2019-10-14 23:19:13,790 INFO L226 Difference]: Without dead ends: 726 [2019-10-14 23:19:13,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:19:13,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2019-10-14 23:19:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2019-10-14 23:19:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2019-10-14 23:19:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1151 transitions. [2019-10-14 23:19:13,821 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1151 transitions. Word has length 162 [2019-10-14 23:19:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:13,821 INFO L462 AbstractCegarLoop]: Abstraction has 726 states and 1151 transitions. [2019-10-14 23:19:13,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:19:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1151 transitions. [2019-10-14 23:19:13,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-14 23:19:13,827 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:13,827 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:19:14,036 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:14,036 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:14,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1193684081, now seen corresponding path program 1 times [2019-10-14 23:19:14,037 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:14,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093316821] [2019-10-14 23:19:14,038 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:14,038 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:14,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,224 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 376 [2019-10-14 23:19:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,381 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-14 23:19:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:19:15,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093316821] [2019-10-14 23:19:15,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533195629] [2019-10-14 23:19:15,599 INFO L94 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