/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:11:17,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:11:17,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:11:17,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:11:17,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:11:17,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:11:17,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:11:17,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:11:17,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:11:17,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:11:17,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:11:17,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:11:17,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:11:17,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:11:17,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:11:17,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:11:17,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:11:17,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:11:17,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:11:17,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:11:17,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:11:17,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:11:17,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:11:17,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:11:17,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:11:17,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:11:17,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:11:17,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:11:17,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:11:17,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:11:17,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:11:17,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:11:17,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:11:17,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:11:17,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:11:17,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:11:17,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:11:17,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:11:17,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:11:17,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:11:17,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:11:17,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 06:11:17,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:11:17,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:11:17,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:11:17,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:11:17,741 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:11:17,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:11:17,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:11:17,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:11:17,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:11:17,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:11:17,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:11:17,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:11:17,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:11:17,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:11:17,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:11:17,744 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:11:17,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:11:17,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:11:17,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:11:17,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:11:17,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:11:17,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:11:17,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:11:17,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:11:17,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:11:17,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:11:17,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:11:17,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:11:17,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:11:17,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:11:18,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:11:18,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:11:18,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:11:18,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:11:18,101 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:11:18,101 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-08-22 06:11:18,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d5a07a1f/3482b085973b49be989c2ba75c03fec8/FLAG51611be34 [2020-08-22 06:11:18,777 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:11:18,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-08-22 06:11:18,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d5a07a1f/3482b085973b49be989c2ba75c03fec8/FLAG51611be34 [2020-08-22 06:11:19,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d5a07a1f/3482b085973b49be989c2ba75c03fec8 [2020-08-22 06:11:19,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:11:19,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:11:19,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:11:19,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:11:19,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:11:19,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19, skipping insertion in model container [2020-08-22 06:11:19,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:11:19,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:11:19,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:11:19,569 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:11:19,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:11:19,743 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:11:19,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19 WrapperNode [2020-08-22 06:11:19,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:11:19,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:11:19,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:11:19,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:11:19,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... [2020-08-22 06:11:19,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:11:19,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:11:19,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:11:19,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:11:19,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-22 06:11:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:11:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:11:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 06:11:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 06:11:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 06:11:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 06:11:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 06:11:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 06:11:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 06:11:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 06:11:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 06:11:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 06:11:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 06:11:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:11:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 06:11:19,926 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 06:11:19,926 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 06:11:19,926 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 06:11:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 06:11:19,928 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 06:11:19,929 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 06:11:19,929 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 06:11:19,929 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 06:11:19,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 06:11:19,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 06:11:19,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 06:11:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 06:11:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 06:11:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 06:11:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 06:11:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 06:11:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 06:11:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 06:11:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 06:11:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 06:11:19,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:11:19,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:11:19,933 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 06:11:19,934 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 06:11:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:11:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:11:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 06:11:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:11:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:11:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:11:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:11:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 06:11:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:11:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 06:11:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 06:11:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:11:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 06:11:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 06:11:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:11:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 06:11:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 06:11:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 06:11:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 06:11:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 06:11:19,939 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 06:11:19,939 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 06:11:19,939 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 06:11:19,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 06:11:19,939 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 06:11:19,939 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 06:11:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 06:11:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 06:11:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 06:11:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:11:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 06:11:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 06:11:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 06:11:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 06:11:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 06:11:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 06:11:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 06:11:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 06:11:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 06:11:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 06:11:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 06:11:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 06:11:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:11:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:11:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:11:20,983 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:11:20,983 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 06:11:20,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:11:20 BoogieIcfgContainer [2020-08-22 06:11:20,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:11:20,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:11:20,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:11:20,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:11:20,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:11:19" (1/3) ... [2020-08-22 06:11:20,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797fc15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:11:20, skipping insertion in model container [2020-08-22 06:11:20,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:19" (2/3) ... [2020-08-22 06:11:20,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797fc15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:11:20, skipping insertion in model container [2020-08-22 06:11:20,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:11:20" (3/3) ... [2020-08-22 06:11:20,998 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-08-22 06:11:21,009 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:11:21,017 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:11:21,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:11:21,062 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:11:21,062 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:11:21,062 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:11:21,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:11:21,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:11:21,063 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:11:21,063 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:11:21,063 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:11:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-08-22 06:11:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 06:11:21,098 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:21,099 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:21,099 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:21,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1951083148, now seen corresponding path program 1 times [2020-08-22 06:11:21,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:21,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883908955] [2020-08-22 06:11:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,888 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:21,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:11:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:21,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 06:11:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:22,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883908955] [2020-08-22 06:11:22,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:22,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:11:22,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687935561] [2020-08-22 06:11:22,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 06:11:22,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:22,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 06:11:22,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:11:22,033 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 4 states. [2020-08-22 06:11:23,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:23,159 INFO L93 Difference]: Finished difference Result 308 states and 391 transitions. [2020-08-22 06:11:23,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 06:11:23,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 06:11:23,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:23,176 INFO L225 Difference]: With dead ends: 308 [2020-08-22 06:11:23,177 INFO L226 Difference]: Without dead ends: 170 [2020-08-22 06:11:23,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:11:23,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-08-22 06:11:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 139. [2020-08-22 06:11:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-08-22 06:11:23,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 161 transitions. [2020-08-22 06:11:23,280 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 161 transitions. Word has length 59 [2020-08-22 06:11:23,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:23,280 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 161 transitions. [2020-08-22 06:11:23,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 06:11:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 161 transitions. [2020-08-22 06:11:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 06:11:23,288 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:23,289 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:23,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:11:23,289 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:23,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:23,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1220523940, now seen corresponding path program 1 times [2020-08-22 06:11:23,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:23,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291854695] [2020-08-22 06:11:23,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,707 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:23,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:11:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 06:11:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 06:11:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:23,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291854695] [2020-08-22 06:11:23,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:23,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 06:11:23,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706826610] [2020-08-22 06:11:23,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 06:11:23,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:23,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 06:11:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:11:23,773 INFO L87 Difference]: Start difference. First operand 139 states and 161 transitions. Second operand 5 states. [2020-08-22 06:11:24,235 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:25,098 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2020-08-22 06:11:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:11:25,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-22 06:11:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:25,102 INFO L225 Difference]: With dead ends: 244 [2020-08-22 06:11:25,105 INFO L226 Difference]: Without dead ends: 160 [2020-08-22 06:11:25,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:11:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-22 06:11:25,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 130. [2020-08-22 06:11:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-22 06:11:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2020-08-22 06:11:25,150 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 60 [2020-08-22 06:11:25,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:25,150 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2020-08-22 06:11:25,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 06:11:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2020-08-22 06:11:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 06:11:25,153 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:25,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:25,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:11:25,153 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:25,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:25,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1125066517, now seen corresponding path program 1 times [2020-08-22 06:11:25,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:25,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685852107] [2020-08-22 06:11:25,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,500 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 06:11:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:11:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:25,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685852107] [2020-08-22 06:11:25,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:25,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:25,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825739694] [2020-08-22 06:11:25,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:25,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:25,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:25,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:25,659 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand 9 states. [2020-08-22 06:11:26,080 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:26,387 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:26,653 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:26,895 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:27,806 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:29,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:29,364 INFO L93 Difference]: Finished difference Result 435 states and 529 transitions. [2020-08-22 06:11:29,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 06:11:29,365 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 06:11:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:29,371 INFO L225 Difference]: With dead ends: 435 [2020-08-22 06:11:29,371 INFO L226 Difference]: Without dead ends: 333 [2020-08-22 06:11:29,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-08-22 06:11:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 268. [2020-08-22 06:11:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-08-22 06:11:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 318 transitions. [2020-08-22 06:11:29,437 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 318 transitions. Word has length 64 [2020-08-22 06:11:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:29,437 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 318 transitions. [2020-08-22 06:11:29,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 318 transitions. [2020-08-22 06:11:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 06:11:29,441 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:29,442 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:29,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:11:29,442 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:29,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:29,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1836372268, now seen corresponding path program 1 times [2020-08-22 06:11:29,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:29,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6754128] [2020-08-22 06:11:29,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,752 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:29,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:11:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:11:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 06:11:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 06:11:29,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6754128] [2020-08-22 06:11:29,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:29,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:29,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849949584] [2020-08-22 06:11:29,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:29,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:29,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:29,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:29,877 INFO L87 Difference]: Start difference. First operand 268 states and 318 transitions. Second operand 9 states. [2020-08-22 06:11:30,288 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:30,909 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:31,793 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:32,026 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:32,306 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:32,567 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:33,052 INFO L93 Difference]: Finished difference Result 679 states and 862 transitions. [2020-08-22 06:11:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 06:11:33,053 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-22 06:11:33,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:33,061 INFO L225 Difference]: With dead ends: 679 [2020-08-22 06:11:33,061 INFO L226 Difference]: Without dead ends: 439 [2020-08-22 06:11:33,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 06:11:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-22 06:11:33,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 379. [2020-08-22 06:11:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-08-22 06:11:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 451 transitions. [2020-08-22 06:11:33,148 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 451 transitions. Word has length 70 [2020-08-22 06:11:33,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:33,149 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 451 transitions. [2020-08-22 06:11:33,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 451 transitions. [2020-08-22 06:11:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 06:11:33,152 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:33,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:33,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:11:33,153 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:33,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1329110427, now seen corresponding path program 1 times [2020-08-22 06:11:33,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:33,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251114765] [2020-08-22 06:11:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,456 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:33,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 06:11:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-22 06:11:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:33,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251114765] [2020-08-22 06:11:33,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:33,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:33,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235128808] [2020-08-22 06:11:33,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:33,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:33,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:33,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:33,611 INFO L87 Difference]: Start difference. First operand 379 states and 451 transitions. Second operand 9 states. [2020-08-22 06:11:34,052 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:34,993 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:35,225 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:35,491 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:35,773 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:37,095 INFO L93 Difference]: Finished difference Result 1185 states and 1563 transitions. [2020-08-22 06:11:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 06:11:37,095 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-08-22 06:11:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:37,102 INFO L225 Difference]: With dead ends: 1185 [2020-08-22 06:11:37,102 INFO L226 Difference]: Without dead ends: 834 [2020-08-22 06:11:37,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:11:37,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-22 06:11:37,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 717. [2020-08-22 06:11:37,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-08-22 06:11:37,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 858 transitions. [2020-08-22 06:11:37,234 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 858 transitions. Word has length 102 [2020-08-22 06:11:37,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:37,235 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 858 transitions. [2020-08-22 06:11:37,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 858 transitions. [2020-08-22 06:11:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 06:11:37,238 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:37,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:37,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:11:37,239 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:37,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:37,239 INFO L82 PathProgramCache]: Analyzing trace with hash 359529404, now seen corresponding path program 1 times [2020-08-22 06:11:37,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:37,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979445328] [2020-08-22 06:11:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,501 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 06:11:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-22 06:11:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:37,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979445328] [2020-08-22 06:11:37,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:37,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:37,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658476118] [2020-08-22 06:11:37,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:37,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:37,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:37,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:37,654 INFO L87 Difference]: Start difference. First operand 717 states and 858 transitions. Second operand 9 states. [2020-08-22 06:11:38,631 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:38,871 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:39,162 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:39,418 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:40,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:40,126 INFO L93 Difference]: Finished difference Result 1536 states and 1964 transitions. [2020-08-22 06:11:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:11:40,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-08-22 06:11:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:40,132 INFO L225 Difference]: With dead ends: 1536 [2020-08-22 06:11:40,134 INFO L226 Difference]: Without dead ends: 847 [2020-08-22 06:11:40,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 06:11:40,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-08-22 06:11:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 737. [2020-08-22 06:11:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-08-22 06:11:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 878 transitions. [2020-08-22 06:11:40,281 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 878 transitions. Word has length 102 [2020-08-22 06:11:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:40,283 INFO L479 AbstractCegarLoop]: Abstraction has 737 states and 878 transitions. [2020-08-22 06:11:40,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 878 transitions. [2020-08-22 06:11:40,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 06:11:40,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:40,288 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:40,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 06:11:40,288 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:40,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:40,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1689858438, now seen corresponding path program 1 times [2020-08-22 06:11:40,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:40,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451591721] [2020-08-22 06:11:40,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,592 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:40,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 06:11:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-22 06:11:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:40,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451591721] [2020-08-22 06:11:40,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:40,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 06:11:40,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187599136] [2020-08-22 06:11:40,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 06:11:40,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:40,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 06:11:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:11:40,726 INFO L87 Difference]: Start difference. First operand 737 states and 878 transitions. Second operand 11 states. [2020-08-22 06:11:41,230 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:41,461 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:41,681 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:42,403 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:42,661 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:42,903 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:43,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:43,756 INFO L93 Difference]: Finished difference Result 1360 states and 1702 transitions. [2020-08-22 06:11:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 06:11:43,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-08-22 06:11:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:43,762 INFO L225 Difference]: With dead ends: 1360 [2020-08-22 06:11:43,763 INFO L226 Difference]: Without dead ends: 651 [2020-08-22 06:11:43,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:11:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-08-22 06:11:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 578. [2020-08-22 06:11:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-08-22 06:11:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 674 transitions. [2020-08-22 06:11:43,869 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 674 transitions. Word has length 102 [2020-08-22 06:11:43,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:43,870 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 674 transitions. [2020-08-22 06:11:43,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 06:11:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 674 transitions. [2020-08-22 06:11:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-08-22 06:11:43,873 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:43,874 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:43,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 06:11:43,874 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:43,874 INFO L82 PathProgramCache]: Analyzing trace with hash -764679949, now seen corresponding path program 1 times [2020-08-22 06:11:43,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:43,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350216311] [2020-08-22 06:11:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,228 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 06:11:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 06:11:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:11:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-22 06:11:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:44,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350216311] [2020-08-22 06:11:44,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:44,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 06:11:44,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987559327] [2020-08-22 06:11:44,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 06:11:44,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:44,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 06:11:44,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 06:11:44,428 INFO L87 Difference]: Start difference. First operand 578 states and 674 transitions. Second operand 12 states. [2020-08-22 06:11:44,861 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:45,467 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:46,121 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:46,484 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:46,746 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:47,066 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:47,323 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:48,624 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:48,885 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:49,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:49,471 INFO L93 Difference]: Finished difference Result 1691 states and 2129 transitions. [2020-08-22 06:11:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 06:11:49,472 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2020-08-22 06:11:49,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:49,485 INFO L225 Difference]: With dead ends: 1691 [2020-08-22 06:11:49,485 INFO L226 Difference]: Without dead ends: 1313 [2020-08-22 06:11:49,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 06:11:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2020-08-22 06:11:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1197. [2020-08-22 06:11:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-08-22 06:11:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1399 transitions. [2020-08-22 06:11:49,675 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1399 transitions. Word has length 106 [2020-08-22 06:11:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:49,678 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1399 transitions. [2020-08-22 06:11:49,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 06:11:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1399 transitions. [2020-08-22 06:11:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-22 06:11:49,682 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:49,682 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:49,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 06:11:49,683 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:49,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:49,683 INFO L82 PathProgramCache]: Analyzing trace with hash -60868023, now seen corresponding path program 1 times [2020-08-22 06:11:49,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:49,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126952703] [2020-08-22 06:11:49,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:49,997 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:11:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:11:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:11:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-22 06:11:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-22 06:11:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 06:11:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 06:11:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 06:11:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 06:11:50,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126952703] [2020-08-22 06:11:50,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:11:50,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:11:50,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852948196] [2020-08-22 06:11:50,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:11:50,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:50,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:11:50,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:50,306 INFO L87 Difference]: Start difference. First operand 1197 states and 1399 transitions. Second operand 16 states. [2020-08-22 06:11:51,150 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:51,464 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:11:51,737 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:11:51,987 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:11:52,578 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:52,871 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:53,225 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:53,497 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:54,580 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:55,050 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:55,340 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:55,672 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:56,156 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:56,702 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:56,944 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:57,199 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:57,462 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:57,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:57,960 INFO L93 Difference]: Finished difference Result 2225 states and 2688 transitions. [2020-08-22 06:11:57,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-22 06:11:57,960 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 149 [2020-08-22 06:11:57,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:57,968 INFO L225 Difference]: With dead ends: 2225 [2020-08-22 06:11:57,968 INFO L226 Difference]: Without dead ends: 1222 [2020-08-22 06:11:57,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-08-22 06:11:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-08-22 06:11:58,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1102. [2020-08-22 06:11:58,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-08-22 06:11:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1268 transitions. [2020-08-22 06:11:58,163 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1268 transitions. Word has length 149 [2020-08-22 06:11:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:58,163 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1268 transitions. [2020-08-22 06:11:58,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 06:11:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1268 transitions. [2020-08-22 06:11:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-08-22 06:11:58,171 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:58,171 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:58,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 06:11:58,172 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:58,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:58,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1576976523, now seen corresponding path program 1 times [2020-08-22 06:11:58,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:58,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099741290] [2020-08-22 06:11:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,550 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:58,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:11:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:11:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:11:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:11:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:11:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-08-22 06:11:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:11:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-22 06:11:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-08-22 06:11:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:11:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-08-22 06:11:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-22 06:11:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-08-22 06:11:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:58,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-08-22 06:11:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 104 proven. 48 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-08-22 06:11:59,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099741290] [2020-08-22 06:11:59,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:11:59,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:11:59,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270365555] [2020-08-22 06:11:59,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:11:59,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:59,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:11:59,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:59,104 INFO L87 Difference]: Start difference. First operand 1102 states and 1268 transitions. Second operand 16 states. [2020-08-22 06:12:00,472 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:12:00,743 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:01,006 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:01,249 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:02,400 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:04,227 INFO L93 Difference]: Finished difference Result 3031 states and 3632 transitions. [2020-08-22 06:12:04,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 06:12:04,228 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 302 [2020-08-22 06:12:04,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:04,238 INFO L225 Difference]: With dead ends: 3031 [2020-08-22 06:12:04,238 INFO L226 Difference]: Without dead ends: 1752 [2020-08-22 06:12:04,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 111 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 06:12:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2020-08-22 06:12:04,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1430. [2020-08-22 06:12:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2020-08-22 06:12:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1674 transitions. [2020-08-22 06:12:04,522 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1674 transitions. Word has length 302 [2020-08-22 06:12:04,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:04,522 INFO L479 AbstractCegarLoop]: Abstraction has 1430 states and 1674 transitions. [2020-08-22 06:12:04,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 06:12:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1674 transitions. [2020-08-22 06:12:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-22 06:12:04,531 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:04,531 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 06:12:04,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 06:12:04,532 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:04,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:04,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1865964208, now seen corresponding path program 1 times [2020-08-22 06:12:04,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:04,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925177861] [2020-08-22 06:12:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,834 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:04,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:12:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:12:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:12:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:04,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:12:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-22 06:12:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-08-22 06:12:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 06:12:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-08-22 06:12:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-08-22 06:12:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-08-22 06:12:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-22 06:12:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 111 proven. 44 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-08-22 06:12:05,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925177861] [2020-08-22 06:12:05,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:05,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 06:12:05,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557255896] [2020-08-22 06:12:05,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 06:12:05,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:05,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 06:12:05,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-22 06:12:05,250 INFO L87 Difference]: Start difference. First operand 1430 states and 1674 transitions. Second operand 17 states. [2020-08-22 06:12:06,114 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:06,418 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:06,667 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:06,904 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:07,546 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:08,568 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:08,814 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:09,293 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:09,973 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:10,626 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:10,879 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:11,761 INFO L93 Difference]: Finished difference Result 2555 states and 3056 transitions. [2020-08-22 06:12:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 06:12:11,762 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 308 [2020-08-22 06:12:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:11,773 INFO L225 Difference]: With dead ends: 2555 [2020-08-22 06:12:11,773 INFO L226 Difference]: Without dead ends: 1457 [2020-08-22 06:12:11,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=370, Invalid=1436, Unknown=0, NotChecked=0, Total=1806 [2020-08-22 06:12:11,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2020-08-22 06:12:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1403. [2020-08-22 06:12:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1403 states. [2020-08-22 06:12:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1626 transitions. [2020-08-22 06:12:12,014 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1626 transitions. Word has length 308 [2020-08-22 06:12:12,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:12,015 INFO L479 AbstractCegarLoop]: Abstraction has 1403 states and 1626 transitions. [2020-08-22 06:12:12,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 06:12:12,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1626 transitions. [2020-08-22 06:12:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-22 06:12:12,024 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:12,024 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 06:12:12,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 06:12:12,024 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:12,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:12,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2055130084, now seen corresponding path program 1 times [2020-08-22 06:12:12,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:12,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424216972] [2020-08-22 06:12:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,308 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:12,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:12:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:12:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:12:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:12:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 06:12:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-08-22 06:12:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-22 06:12:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 06:12:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-22 06:12:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 06:12:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-22 06:12:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 82 proven. 4 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-08-22 06:12:12,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424216972] [2020-08-22 06:12:12,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:12,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 06:12:12,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365514807] [2020-08-22 06:12:12,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:12:12,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:12,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:12:12,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:12:12,527 INFO L87 Difference]: Start difference. First operand 1403 states and 1626 transitions. Second operand 9 states. [2020-08-22 06:12:13,634 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:14,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:14,965 INFO L93 Difference]: Finished difference Result 1737 states and 2054 transitions. [2020-08-22 06:12:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 06:12:14,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 309 [2020-08-22 06:12:14,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:14,968 INFO L225 Difference]: With dead ends: 1737 [2020-08-22 06:12:14,968 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 06:12:14,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-08-22 06:12:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 06:12:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 06:12:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 06:12:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 06:12:14,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 309 [2020-08-22 06:12:14,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:14,975 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 06:12:14,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:12:14,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 06:12:14,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 06:12:14,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 06:12:14,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.