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_spec1_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:19:50,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:19:50,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:19:50,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:19:50,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:19:50,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:19:50,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:19:50,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:19:50,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:19:50,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:19:50,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:19:50,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:19:50,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:19:50,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:19:50,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:19:50,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:19:50,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:19:50,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:19:50,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:19:50,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:19:50,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:19:50,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:19:50,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:19:50,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:19:50,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:19:50,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:19:50,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:19:50,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:19:50,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:19:50,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:19:50,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:19:50,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:19:50,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:19:50,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:19:50,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:19:50,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:19:50,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:19:50,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:19:50,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:19:50,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:19:50,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:19:50,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:19:50,209 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:19:50,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:19:50,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:19:50,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:19:50,211 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:19:50,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:19:50,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:19:50,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:19:50,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:19:50,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:19:50,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:19:50,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:19:50,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:19:50,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:19:50,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:19:50,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:19:50,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:19:50,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:19:50,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:19:50,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:19:50,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:19:50,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:19:50,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:19:50,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:19:50,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:19:50,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:19:50,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:19:50,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:19:50,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:19:50,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:19:50,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:19:50,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:19:50,568 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:19:50,568 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:19:50,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product09.cil.c [2019-10-14 23:19:50,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339307779/6c1c202aa5c04d9c91d80572860e3a49/FLAG1495fab53 [2019-10-14 23:19:51,235 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:19:51,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product09.cil.c [2019-10-14 23:19:51,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339307779/6c1c202aa5c04d9c91d80572860e3a49/FLAG1495fab53 [2019-10-14 23:19:51,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339307779/6c1c202aa5c04d9c91d80572860e3a49 [2019-10-14 23:19:51,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:19:51,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:19:51,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:19:51,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:19:51,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:19:51,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:51" (1/1) ... [2019-10-14 23:19:51,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e54d529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:51, skipping insertion in model container [2019-10-14 23:19:51,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:51" (1/1) ... [2019-10-14 23:19:51,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:19:51,579 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:19:52,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:19:52,295 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:19:52,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:19:52,511 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:19:52,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52 WrapperNode [2019-10-14 23:19:52,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:19:52,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:19:52,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:19:52,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:19:52,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (1/1) ... [2019-10-14 23:19:52,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:19:52,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:19:52,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:19:52,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:19:52,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (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 23:19:52,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:19:52,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:19:52,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:19:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:19:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:19:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:19:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:19:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:19:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:19:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:19:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:19:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:19:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:19:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:19:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:19:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:19:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:19:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:19:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:19:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:19:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:19:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:19:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:19:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:19:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:19:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:19:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:19:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:19:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:19:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:19:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:19:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:19:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-14 23:19:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-14 23:19:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-14 23:19:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:19:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:19:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:19:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:19:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:19:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:19:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:19:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:19:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:19:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:19:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:19:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:19:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:19:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:19:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-14 23:19:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:19:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:19:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:19:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:19:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:19:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:19:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:19:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:19:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:19:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:19:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:19:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:19:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:19:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:19:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:19:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:19:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:19:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:19:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:19:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:19:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:19:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:19:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:19:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:19:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:19:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:19:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:19:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:19:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:19:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:19:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:19:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:19:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:19:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:19:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:19:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:19:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:19:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:19:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:19:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:19:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:19:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:19:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:19:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:19:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:19:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:19:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:19:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:19:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:19:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:19:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:19:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:19:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:19:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:19:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:19:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:19:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:19:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:19:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:19:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:19:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:19:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:19:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:19:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:19:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:19:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:19:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:19:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:19:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:19:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:19:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:19:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-14 23:19:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:19:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:19:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:19:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:19:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:19:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-14 23:19:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-14 23:19:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:19:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:19:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:19:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:19:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:19:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:19:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:19:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:19:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:19:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:19:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:19:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:19:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:19:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:19:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:19:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:19:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-14 23:19:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:19:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:19:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:19:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:19:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:19:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:19:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:19:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:19:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:19:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:19:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:19:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:19:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:19:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:19:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:19:55,313 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:19:55,314 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:19:55,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:55 BoogieIcfgContainer [2019-10-14 23:19:55,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:19:55,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:19:55,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:19:55,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:19:55,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:19:51" (1/3) ... [2019-10-14 23:19:55,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3d511a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:55, skipping insertion in model container [2019-10-14 23:19:55,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:52" (2/3) ... [2019-10-14 23:19:55,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3d511a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:55, skipping insertion in model container [2019-10-14 23:19:55,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:55" (3/3) ... [2019-10-14 23:19:55,326 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product09.cil.c [2019-10-14 23:19:55,336 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:19:55,346 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:19:55,357 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:19:55,401 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:19:55,401 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:19:55,402 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:19:55,402 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:19:55,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:19:55,402 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:19:55,402 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:19:55,402 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:19:55,444 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states. [2019-10-14 23:19:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-14 23:19:55,471 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:55,472 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:19:55,474 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:55,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:55,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1329174793, now seen corresponding path program 1 times [2019-10-14 23:19:55,489 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:55,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288996880] [2019-10-14 23:19:55,490 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:55,490 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:55,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:56,946 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:19:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,259 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:19:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,436 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:19:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:19:57,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288996880] [2019-10-14 23:19:57,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103906983] [2019-10-14 23:19:57,858 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 23:19:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:58,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-14 23:19:58,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:19:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-14 23:19:58,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:19:58,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 10 [2019-10-14 23:19:58,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862622516] [2019-10-14 23:19:58,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:19:58,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:58,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:19:58,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:19:58,517 INFO L87 Difference]: Start difference. First operand 738 states. Second operand 2 states. [2019-10-14 23:19:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:58,592 INFO L93 Difference]: Finished difference Result 621 states and 997 transitions. [2019-10-14 23:19:58,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:19:58,594 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 138 [2019-10-14 23:19:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:58,624 INFO L225 Difference]: With dead ends: 621 [2019-10-14 23:19:58,624 INFO L226 Difference]: Without dead ends: 584 [2019-10-14 23:19:58,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:19:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-14 23:19:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-14 23:19:58,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-14 23:19:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 942 transitions. [2019-10-14 23:19:58,755 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 942 transitions. Word has length 138 [2019-10-14 23:19:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:58,758 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 942 transitions. [2019-10-14 23:19:58,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:19:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 942 transitions. [2019-10-14 23:19:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-14 23:19:58,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:58,768 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:19:58,977 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:19:58,978 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:58,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1202691332, now seen corresponding path program 1 times [2019-10-14 23:19:58,978 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:58,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321531332] [2019-10-14 23:19:58,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:58,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:58,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,020 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,256 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,487 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:00,831 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:20:00,831 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321531332] [2019-10-14 23:20:00,831 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215366007] [2019-10-14 23:20:00,831 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 23:20:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:01,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 3178 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:01,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:20:01,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:01,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:01,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132892572] [2019-10-14 23:20:01,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:01,531 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:01,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:01,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:01,533 INFO L87 Difference]: Start difference. First operand 584 states and 942 transitions. Second operand 4 states. [2019-10-14 23:20:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:01,799 INFO L93 Difference]: Finished difference Result 1140 states and 1857 transitions. [2019-10-14 23:20:01,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:01,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2019-10-14 23:20:01,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:01,813 INFO L225 Difference]: With dead ends: 1140 [2019-10-14 23:20:01,813 INFO L226 Difference]: Without dead ends: 584 [2019-10-14 23:20:01,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:01,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-14 23:20:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-14 23:20:01,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-14 23:20:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 941 transitions. [2019-10-14 23:20:01,882 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 941 transitions. Word has length 140 [2019-10-14 23:20:01,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:01,884 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 941 transitions. [2019-10-14 23:20:01,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:01,885 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 941 transitions. [2019-10-14 23:20:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-14 23:20:01,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:01,896 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] [2019-10-14 23:20:02,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:02,102 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:02,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:02,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1148939338, now seen corresponding path program 1 times [2019-10-14 23:20:02,103 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:02,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92226389] [2019-10-14 23:20:02,103 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:02,103 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:02,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,081 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,393 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,560 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:20:03,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92226389] [2019-10-14 23:20:03,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425529046] [2019-10-14 23:20:03,904 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 23:20:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:04,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 3180 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:04,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:20:04,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:04,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:04,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746971994] [2019-10-14 23:20:04,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:04,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:04,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:04,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:04,535 INFO L87 Difference]: Start difference. First operand 584 states and 941 transitions. Second operand 4 states. [2019-10-14 23:20:04,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:04,623 INFO L93 Difference]: Finished difference Result 1140 states and 1855 transitions. [2019-10-14 23:20:04,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:04,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2019-10-14 23:20:04,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:04,630 INFO L225 Difference]: With dead ends: 1140 [2019-10-14 23:20:04,631 INFO L226 Difference]: Without dead ends: 584 [2019-10-14 23:20:04,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-14 23:20:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-14 23:20:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-14 23:20:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 940 transitions. [2019-10-14 23:20:04,723 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 940 transitions. Word has length 142 [2019-10-14 23:20:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:04,724 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 940 transitions. [2019-10-14 23:20:04,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:04,724 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 940 transitions. [2019-10-14 23:20:04,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-14 23:20:04,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:04,730 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] [2019-10-14 23:20:04,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:04,940 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:04,941 INFO L82 PathProgramCache]: Analyzing trace with hash -333550332, now seen corresponding path program 1 times [2019-10-14 23:20:04,941 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:04,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178236050] [2019-10-14 23:20:04,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:04,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:04,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,887 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,141 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,300 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:06,667 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:20:06,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178236050] [2019-10-14 23:20:06,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877053200] [2019-10-14 23:20:06,668 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 23:20:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:07,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:07,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:20:07,287 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:07,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:07,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441994226] [2019-10-14 23:20:07,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:07,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:07,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:07,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:07,289 INFO L87 Difference]: Start difference. First operand 584 states and 940 transitions. Second operand 4 states. [2019-10-14 23:20:07,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:07,384 INFO L93 Difference]: Finished difference Result 1147 states and 1862 transitions. [2019-10-14 23:20:07,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:20:07,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2019-10-14 23:20:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:07,390 INFO L225 Difference]: With dead ends: 1147 [2019-10-14 23:20:07,390 INFO L226 Difference]: Without dead ends: 593 [2019-10-14 23:20:07,394 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-14 23:20:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-14 23:20:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-14 23:20:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 952 transitions. [2019-10-14 23:20:07,425 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 952 transitions. Word has length 144 [2019-10-14 23:20:07,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:07,426 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 952 transitions. [2019-10-14 23:20:07,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:07,426 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 952 transitions. [2019-10-14 23:20:07,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-14 23:20:07,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:07,433 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] [2019-10-14 23:20:07,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:07,642 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:07,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:07,642 INFO L82 PathProgramCache]: Analyzing trace with hash 2025668661, now seen corresponding path program 1 times [2019-10-14 23:20:07,642 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:07,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662612518] [2019-10-14 23:20:07,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:07,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:07,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,775 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,018 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,186 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:20:09,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662612518] [2019-10-14 23:20:09,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305445071] [2019-10-14 23:20:09,596 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 23:20:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:10,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:10,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:20:10,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:10,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:10,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119212820] [2019-10-14 23:20:10,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:10,282 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:10,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:10,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:10,283 INFO L87 Difference]: Start difference. First operand 593 states and 952 transitions. Second operand 4 states. [2019-10-14 23:20:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:10,367 INFO L93 Difference]: Finished difference Result 1149 states and 1863 transitions. [2019-10-14 23:20:10,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:20:10,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2019-10-14 23:20:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:10,373 INFO L225 Difference]: With dead ends: 1149 [2019-10-14 23:20:10,374 INFO L226 Difference]: Without dead ends: 593 [2019-10-14 23:20:10,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-14 23:20:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-14 23:20:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-14 23:20:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 951 transitions. [2019-10-14 23:20:10,403 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 951 transitions. Word has length 145 [2019-10-14 23:20:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:10,403 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 951 transitions. [2019-10-14 23:20:10,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:10,403 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 951 transitions. [2019-10-14 23:20:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-14 23:20:10,407 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:10,408 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] [2019-10-14 23:20:10,624 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:10,624 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:10,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:10,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1147712472, now seen corresponding path program 1 times [2019-10-14 23:20:10,625 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:10,625 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032104594] [2019-10-14 23:20:10,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:10,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:10,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,582 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:11,843 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,015 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,366 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:20:12,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032104594] [2019-10-14 23:20:12,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969925384] [2019-10-14 23:20:12,368 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 23:20:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:12,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 3184 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:13,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:20:13,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:13,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:13,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840868618] [2019-10-14 23:20:13,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:13,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:13,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:13,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:13,110 INFO L87 Difference]: Start difference. First operand 593 states and 951 transitions. Second operand 4 states. [2019-10-14 23:20:13,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:13,193 INFO L93 Difference]: Finished difference Result 1149 states and 1862 transitions. [2019-10-14 23:20:13,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:20:13,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-10-14 23:20:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:13,199 INFO L225 Difference]: With dead ends: 1149 [2019-10-14 23:20:13,200 INFO L226 Difference]: Without dead ends: 593 [2019-10-14 23:20:13,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-14 23:20:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-14 23:20:13,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-14 23:20:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 950 transitions. [2019-10-14 23:20:13,230 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 950 transitions. Word has length 146 [2019-10-14 23:20:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:13,232 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 950 transitions. [2019-10-14 23:20:13,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 950 transitions. [2019-10-14 23:20:13,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-14 23:20:13,237 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:13,238 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] [2019-10-14 23:20:13,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:13,447 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:13,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:13,448 INFO L82 PathProgramCache]: Analyzing trace with hash 261961625, now seen corresponding path program 1 times [2019-10-14 23:20:13,448 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:13,449 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316886182] [2019-10-14 23:20:13,450 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:13,450 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:13,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,870 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,298 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,587 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-14 23:20:16,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316886182] [2019-10-14 23:20:16,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591322427] [2019-10-14 23:20:16,160 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 23:20:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:16,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 3185 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:20:16,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:20:17,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:17,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2019-10-14 23:20:17,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112032] [2019-10-14 23:20:17,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:20:17,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:17,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:20:17,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:20:17,137 INFO L87 Difference]: Start difference. First operand 593 states and 950 transitions. Second operand 7 states. [2019-10-14 23:20:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:17,368 INFO L93 Difference]: Finished difference Result 1156 states and 1871 transitions. [2019-10-14 23:20:17,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:20:17,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2019-10-14 23:20:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:17,377 INFO L225 Difference]: With dead ends: 1156 [2019-10-14 23:20:17,377 INFO L226 Difference]: Without dead ends: 604 [2019-10-14 23:20:17,383 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:20:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2019-10-14 23:20:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 600. [2019-10-14 23:20:17,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-10-14 23:20:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 960 transitions. [2019-10-14 23:20:17,426 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 960 transitions. Word has length 147 [2019-10-14 23:20:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:17,428 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 960 transitions. [2019-10-14 23:20:17,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:20:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 960 transitions. [2019-10-14 23:20:17,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-14 23:20:17,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:17,433 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] [2019-10-14 23:20:17,652 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:17,652 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:17,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:17,653 INFO L82 PathProgramCache]: Analyzing trace with hash -561719846, now seen corresponding path program 1 times [2019-10-14 23:20:17,653 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:17,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976995184] [2019-10-14 23:20:17,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:17,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:17,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,143 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,488 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,656 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-14 23:20:20,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976995184] [2019-10-14 23:20:20,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197775034] [2019-10-14 23:20:20,046 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 23:20:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:20,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 3184 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:20:20,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:20:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:20:20,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:20:20,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2019-10-14 23:20:20,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240128646] [2019-10-14 23:20:20,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:20:20,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:20,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:20:20,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:20:20,705 INFO L87 Difference]: Start difference. First operand 600 states and 960 transitions. Second operand 4 states. [2019-10-14 23:20:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:20:20,899 INFO L93 Difference]: Finished difference Result 1161 states and 1882 transitions. [2019-10-14 23:20:20,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:20:20,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2019-10-14 23:20:20,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:20:20,911 INFO L225 Difference]: With dead ends: 1161 [2019-10-14 23:20:20,912 INFO L226 Difference]: Without dead ends: 600 [2019-10-14 23:20:20,917 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:20:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-10-14 23:20:20,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-10-14 23:20:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-10-14 23:20:20,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 955 transitions. [2019-10-14 23:20:20,949 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 955 transitions. Word has length 147 [2019-10-14 23:20:20,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:20:20,950 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 955 transitions. [2019-10-14 23:20:20,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:20:20,950 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 955 transitions. [2019-10-14 23:20:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-14 23:20:20,957 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:20,957 INFO L380 BasicCegarLoop]: trace histogram [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 23:20:21,168 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:20:21,168 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:21,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:21,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1770571481, now seen corresponding path program 1 times [2019-10-14 23:20:21,169 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:21,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128472189] [2019-10-14 23:20:21,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:21,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:21,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,266 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-10-14 23:20:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,507 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-14 23:20:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,668 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:20:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat