/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:41:38,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:41:38,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:41:38,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:41:38,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:41:38,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:41:38,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:41:38,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:41:38,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:41:38,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:41:38,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:41:38,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:41:38,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:41:38,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:41:38,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:41:38,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:41:38,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:41:38,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:41:38,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:41:38,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:41:38,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:41:38,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:41:38,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:41:38,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:41:38,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:41:38,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:41:38,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:41:38,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:41:38,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:41:38,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:41:38,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:41:38,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:41:38,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:41:38,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:41:38,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:41:38,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:41:38,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:41:38,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:41:38,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:41:38,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:41:38,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:41:38,842 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 [2020-08-19 06:41:38,883 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:41:38,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:41:38,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:41:38,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:41:38,886 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:41:38,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:41:38,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:41:38,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:41:38,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:41:38,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:41:38,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:41:38,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:41:38,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:41:38,889 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:41:38,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:41:38,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:41:38,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:41:38,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:41:38,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:41:38,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:41:38,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:41:38,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:41:38,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:41:38,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:41:38,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:41:38,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:41:38,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:41:38,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:41:38,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:41:38,892 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:41:39,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:41:39,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:41:39,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:41:39,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:41:39,217 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:41:39,218 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-08-19 06:41:39,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a668c42d8/616d7759fb384a46af11c1de464d6ebf/FLAG1aca233ad [2020-08-19 06:41:39,814 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:41:39,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-08-19 06:41:39,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a668c42d8/616d7759fb384a46af11c1de464d6ebf/FLAG1aca233ad [2020-08-19 06:41:40,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a668c42d8/616d7759fb384a46af11c1de464d6ebf [2020-08-19 06:41:40,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:41:40,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:41:40,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:41:40,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:41:40,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:41:40,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40, skipping insertion in model container [2020-08-19 06:41:40,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:41:40,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:41:40,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:41:40,655 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:41:40,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:41:40,795 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:41:40,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40 WrapperNode [2020-08-19 06:41:40,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:41:40,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:41:40,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:41:40,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:41:40,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (1/1) ... [2020-08-19 06:41:40,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:41:40,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:41:40,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:41:40,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:41:40,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (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 [2020-08-19 06:41:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:41:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:41:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 06:41:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 06:41:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 06:41:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 06:41:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 06:41:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 06:41:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 06:41:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-19 06:41:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 06:41:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 06:41:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 06:41:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 06:41:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 06:41:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 06:41:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 06:41:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:41:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 06:41:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 06:41:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 06:41:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 06:41:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 06:41:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 06:41:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 06:41:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 06:41:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 06:41:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 06:41:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 06:41:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 06:41:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 06:41:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 06:41:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 06:41:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:41:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 06:41:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 06:41:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:41:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 06:41:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 06:41:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:41:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 06:41:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 06:41:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 06:41:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 06:41:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 06:41:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 06:41:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 06:41:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 06:41:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 06:41:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 06:41:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 06:41:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 06:41:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 06:41:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:41:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 06:41:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 06:41:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 06:41:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 06:41:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 06:41:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:41:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 06:41:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:41:42,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:41:42,135 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 06:41:42,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:41:42 BoogieIcfgContainer [2020-08-19 06:41:42,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:41:42,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:41:42,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:41:42,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:41:42,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:41:40" (1/3) ... [2020-08-19 06:41:42,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408ab1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:41:42, skipping insertion in model container [2020-08-19 06:41:42,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:41:40" (2/3) ... [2020-08-19 06:41:42,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408ab1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:41:42, skipping insertion in model container [2020-08-19 06:41:42,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:41:42" (3/3) ... [2020-08-19 06:41:42,149 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-08-19 06:41:42,159 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:41:42,167 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:41:42,181 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:41:42,206 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:41:42,207 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:41:42,207 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:41:42,207 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:41:42,207 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:41:42,208 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:41:42,208 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:41:42,208 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:41:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-08-19 06:41:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-19 06:41:42,240 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:41:42,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:41:42,242 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:41:42,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:41:42,247 INFO L82 PathProgramCache]: Analyzing trace with hash -298144076, now seen corresponding path program 1 times [2020-08-19 06:41:42,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:41:42,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366174200] [2020-08-19 06:41:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:41:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:42,941 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:41:42,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:41:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:41:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:41:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:41:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:41:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:41:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:41:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:41:43,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366174200] [2020-08-19 06:41:43,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:41:43,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 06:41:43,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599231636] [2020-08-19 06:41:43,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 06:41:43,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:41:43,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 06:41:43,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 06:41:43,096 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-08-19 06:41:44,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:41:44,351 INFO L93 Difference]: Finished difference Result 338 states and 432 transitions. [2020-08-19 06:41:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 06:41:44,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-19 06:41:44,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:41:44,369 INFO L225 Difference]: With dead ends: 338 [2020-08-19 06:41:44,369 INFO L226 Difference]: Without dead ends: 182 [2020-08-19 06:41:44,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 06:41:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-19 06:41:44,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 147. [2020-08-19 06:41:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-08-19 06:41:44,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2020-08-19 06:41:44,488 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2020-08-19 06:41:44,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:41:44,488 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2020-08-19 06:41:44,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 06:41:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2020-08-19 06:41:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 06:41:44,492 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:41:44,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:41:44,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:41:44,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:41:44,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:41:44,494 INFO L82 PathProgramCache]: Analyzing trace with hash -491113124, now seen corresponding path program 1 times [2020-08-19 06:41:44,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:41:44,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701945231] [2020-08-19 06:41:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:41:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,854 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:41:44,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:41:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:41:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:41:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:41:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:41:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 06:41:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 06:41:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:41:44,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701945231] [2020-08-19 06:41:44,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:41:44,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 06:41:44,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270101574] [2020-08-19 06:41:44,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 06:41:44,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:41:44,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 06:41:44,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 06:41:44,902 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 4 states. [2020-08-19 06:41:45,292 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:46,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:41:46,171 INFO L93 Difference]: Finished difference Result 267 states and 319 transitions. [2020-08-19 06:41:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 06:41:46,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-19 06:41:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:41:46,178 INFO L225 Difference]: With dead ends: 267 [2020-08-19 06:41:46,178 INFO L226 Difference]: Without dead ends: 166 [2020-08-19 06:41:46,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:41:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-19 06:41:46,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 138. [2020-08-19 06:41:46,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-08-19 06:41:46,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2020-08-19 06:41:46,248 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2020-08-19 06:41:46,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:41:46,249 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2020-08-19 06:41:46,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 06:41:46,249 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2020-08-19 06:41:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 06:41:46,259 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:41:46,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:41:46,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:41:46,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:41:46,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:41:46,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1388977157, now seen corresponding path program 1 times [2020-08-19 06:41:46,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:41:46,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642257575] [2020-08-19 06:41:46,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:41:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,620 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:41:46,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:41:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:41:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:41:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:41:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:41:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:41:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 06:41:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:41:46,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642257575] [2020-08-19 06:41:46,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:41:46,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 06:41:46,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427284750] [2020-08-19 06:41:46,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:41:46,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:41:46,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:41:46,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:41:46,733 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 8 states. [2020-08-19 06:41:47,075 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:41:47,418 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:47,686 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:47,928 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:41:49,245 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2020-08-19 06:41:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 06:41:49,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-19 06:41:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:41:49,254 INFO L225 Difference]: With dead ends: 280 [2020-08-19 06:41:49,254 INFO L226 Difference]: Without dead ends: 166 [2020-08-19 06:41:49,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 06:41:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-19 06:41:49,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 138. [2020-08-19 06:41:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-08-19 06:41:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2020-08-19 06:41:49,296 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2020-08-19 06:41:49,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:41:49,297 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2020-08-19 06:41:49,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:41:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2020-08-19 06:41:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 06:41:49,298 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:41:49,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:41:49,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:41:49,299 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:41:49,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:41:49,300 INFO L82 PathProgramCache]: Analyzing trace with hash 105794737, now seen corresponding path program 1 times [2020-08-19 06:41:49,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:41:49,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744671896] [2020-08-19 06:41:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:41:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,573 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:41:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:41:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:41:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:41:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:41:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:41:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 06:41:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:41:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:41:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 06:41:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-19 06:41:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:41:49,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744671896] [2020-08-19 06:41:49,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:41:49,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 06:41:49,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471198316] [2020-08-19 06:41:49,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 06:41:49,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:41:49,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 06:41:49,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 06:41:49,731 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 6 states. [2020-08-19 06:41:50,066 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:41:51,237 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:41:51,842 INFO L93 Difference]: Finished difference Result 377 states and 459 transitions. [2020-08-19 06:41:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:41:51,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-08-19 06:41:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:41:51,852 INFO L225 Difference]: With dead ends: 377 [2020-08-19 06:41:51,853 INFO L226 Difference]: Without dead ends: 263 [2020-08-19 06:41:51,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 06:41:51,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-08-19 06:41:51,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 220. [2020-08-19 06:41:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-19 06:41:51,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2020-08-19 06:41:51,923 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 65 [2020-08-19 06:41:51,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:41:51,924 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2020-08-19 06:41:51,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 06:41:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2020-08-19 06:41:51,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-19 06:41:51,926 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:41:51,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:41:51,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 06:41:51,926 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:41:51,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:41:51,927 INFO L82 PathProgramCache]: Analyzing trace with hash -830596407, now seen corresponding path program 1 times [2020-08-19 06:41:51,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:41:51,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838730083] [2020-08-19 06:41:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:41:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,228 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:41:52,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:41:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:41:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:41:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:41:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:41:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 06:41:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:41:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:41:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:41:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:41:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 06:41:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-19 06:41:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:41:52,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838730083] [2020-08-19 06:41:52,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:41:52,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 06:41:52,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764706865] [2020-08-19 06:41:52,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:41:52,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:41:52,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:41:52,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:41:52,349 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 10 states. [2020-08-19 06:41:52,808 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:53,054 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:53,291 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:53,924 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:54,186 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:54,410 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:55,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:41:55,432 INFO L93 Difference]: Finished difference Result 460 states and 553 transitions. [2020-08-19 06:41:55,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:41:55,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-08-19 06:41:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:41:55,436 INFO L225 Difference]: With dead ends: 460 [2020-08-19 06:41:55,436 INFO L226 Difference]: Without dead ends: 264 [2020-08-19 06:41:55,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-08-19 06:41:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-08-19 06:41:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 224. [2020-08-19 06:41:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-19 06:41:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2020-08-19 06:41:55,483 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 79 [2020-08-19 06:41:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:41:55,483 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2020-08-19 06:41:55,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 06:41:55,483 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2020-08-19 06:41:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-19 06:41:55,485 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:41:55,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:41:55,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 06:41:55,485 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:41:55,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:41:55,486 INFO L82 PathProgramCache]: Analyzing trace with hash 2078167495, now seen corresponding path program 1 times [2020-08-19 06:41:55,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:41:55,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535714364] [2020-08-19 06:41:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:41:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,782 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:41:55,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:41:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:41:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:41:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:41:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:41:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 06:41:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:41:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:41:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:41:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:41:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 06:41:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-19 06:41:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:41:55,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:41:55,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535714364] [2020-08-19 06:41:55,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:41:55,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 06:41:55,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032227309] [2020-08-19 06:41:55,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 06:41:55,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:41:55,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 06:41:55,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-19 06:41:55,927 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand 12 states. [2020-08-19 06:41:56,302 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:41:56,596 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:56,850 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:57,076 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:57,591 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:41:58,477 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:41:58,793 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:41:59,042 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:41:59,320 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:41:59,604 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:41:59,846 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:42:01,248 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:01,641 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:02,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:02,361 INFO L93 Difference]: Finished difference Result 789 states and 997 transitions. [2020-08-19 06:42:02,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 06:42:02,362 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-08-19 06:42:02,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:02,371 INFO L225 Difference]: With dead ends: 789 [2020-08-19 06:42:02,371 INFO L226 Difference]: Without dead ends: 589 [2020-08-19 06:42:02,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-19 06:42:02,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-08-19 06:42:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 527. [2020-08-19 06:42:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-19 06:42:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 609 transitions. [2020-08-19 06:42:02,480 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 609 transitions. Word has length 79 [2020-08-19 06:42:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:02,481 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 609 transitions. [2020-08-19 06:42:02,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 06:42:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 609 transitions. [2020-08-19 06:42:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-19 06:42:02,485 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:42:02,485 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-19 06:42:02,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 06:42:02,486 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:42:02,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:42:02,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1201141545, now seen corresponding path program 1 times [2020-08-19 06:42:02,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:42:02,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254161461] [2020-08-19 06:42:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:42:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,753 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:42:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:42:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:42:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:42:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:42:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:42:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:42:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 06:42:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 06:42:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-19 06:42:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-19 06:42:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-19 06:42:02,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254161461] [2020-08-19 06:42:02,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:42:02,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 06:42:02,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864690480] [2020-08-19 06:42:02,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 06:42:02,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:42:02,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 06:42:02,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-08-19 06:42:02,973 INFO L87 Difference]: Start difference. First operand 527 states and 609 transitions. Second operand 13 states. [2020-08-19 06:42:03,321 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:03,951 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:04,483 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:42:04,742 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 06:42:04,996 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:05,229 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:05,478 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:42:05,769 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 06:42:06,059 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:06,322 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:07,943 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:08,173 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:42:08,403 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:08,618 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:09,099 INFO L93 Difference]: Finished difference Result 937 states and 1177 transitions. [2020-08-19 06:42:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-19 06:42:09,100 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 154 [2020-08-19 06:42:09,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:09,104 INFO L225 Difference]: With dead ends: 937 [2020-08-19 06:42:09,104 INFO L226 Difference]: Without dead ends: 434 [2020-08-19 06:42:09,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2020-08-19 06:42:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-08-19 06:42:09,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 380. [2020-08-19 06:42:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-08-19 06:42:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 443 transitions. [2020-08-19 06:42:09,171 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 443 transitions. Word has length 154 [2020-08-19 06:42:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:09,171 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 443 transitions. [2020-08-19 06:42:09,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 06:42:09,172 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 443 transitions. [2020-08-19 06:42:09,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-19 06:42:09,174 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:42:09,174 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:42:09,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 06:42:09,174 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:42:09,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:42:09,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1319690960, now seen corresponding path program 1 times [2020-08-19 06:42:09,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:42:09,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31491949] [2020-08-19 06:42:09,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:42:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,427 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:42:09,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:42:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:42:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:42:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:42:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:42:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:42:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 06:42:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 06:42:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-19 06:42:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-19 06:42:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 06:42:09,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31491949] [2020-08-19 06:42:09,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:42:09,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 06:42:09,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35887218] [2020-08-19 06:42:09,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:42:09,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:42:09,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:42:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:42:09,641 INFO L87 Difference]: Start difference. First operand 380 states and 443 transitions. Second operand 10 states. [2020-08-19 06:42:11,070 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:11,295 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:11,521 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:11,758 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:12,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:12,161 INFO L93 Difference]: Finished difference Result 704 states and 848 transitions. [2020-08-19 06:42:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:42:12,165 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-08-19 06:42:12,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:12,170 INFO L225 Difference]: With dead ends: 704 [2020-08-19 06:42:12,170 INFO L226 Difference]: Without dead ends: 411 [2020-08-19 06:42:12,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 06:42:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-08-19 06:42:12,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 385. [2020-08-19 06:42:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-08-19 06:42:12,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 448 transitions. [2020-08-19 06:42:12,259 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 448 transitions. Word has length 149 [2020-08-19 06:42:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:12,261 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 448 transitions. [2020-08-19 06:42:12,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 06:42:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 448 transitions. [2020-08-19 06:42:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-19 06:42:12,264 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:42:12,265 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:42:12,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 06:42:12,265 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:42:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:42:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash 810217870, now seen corresponding path program 1 times [2020-08-19 06:42:12,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:42:12,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746002401] [2020-08-19 06:42:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:42:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,539 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:42:12,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:42:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:42:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:42:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:42:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:42:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:42:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 06:42:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 06:42:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-19 06:42:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-19 06:42:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:12,726 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 06:42:12,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746002401] [2020-08-19 06:42:12,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:42:12,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 06:42:12,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414375324] [2020-08-19 06:42:12,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:42:12,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:42:12,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:42:12,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:42:12,729 INFO L87 Difference]: Start difference. First operand 385 states and 448 transitions. Second operand 10 states. [2020-08-19 06:42:13,071 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:14,745 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:15,024 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:15,269 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:15,516 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:15,808 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:16,259 INFO L93 Difference]: Finished difference Result 418 states and 500 transitions. [2020-08-19 06:42:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 06:42:16,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-08-19 06:42:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:16,265 INFO L225 Difference]: With dead ends: 418 [2020-08-19 06:42:16,266 INFO L226 Difference]: Without dead ends: 415 [2020-08-19 06:42:16,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 06:42:16,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-08-19 06:42:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 385. [2020-08-19 06:42:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-08-19 06:42:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 447 transitions. [2020-08-19 06:42:16,401 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 447 transitions. Word has length 149 [2020-08-19 06:42:16,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:16,402 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 447 transitions. [2020-08-19 06:42:16,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 06:42:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 447 transitions. [2020-08-19 06:42:16,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-19 06:42:16,406 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:42:16,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:42:16,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 06:42:16,407 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:42:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:42:16,408 INFO L82 PathProgramCache]: Analyzing trace with hash -488644751, now seen corresponding path program 1 times [2020-08-19 06:42:16,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:42:16,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610938161] [2020-08-19 06:42:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:42:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,763 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:42:16,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:42:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:42:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:42:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:42:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:42:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:42:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 06:42:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 06:42:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 06:42:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 06:42:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-19 06:42:16,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610938161] [2020-08-19 06:42:16,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:42:16,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-19 06:42:16,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190661704] [2020-08-19 06:42:16,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 06:42:16,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:42:16,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 06:42:16,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-19 06:42:16,975 INFO L87 Difference]: Start difference. First operand 385 states and 447 transitions. Second operand 12 states. [2020-08-19 06:42:17,471 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:18,178 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:19,001 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:19,316 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:19,568 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:19,833 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:20,115 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:20,373 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:21,676 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:22,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:22,479 INFO L93 Difference]: Finished difference Result 922 states and 1160 transitions. [2020-08-19 06:42:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-19 06:42:22,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2020-08-19 06:42:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:22,485 INFO L225 Difference]: With dead ends: 922 [2020-08-19 06:42:22,485 INFO L226 Difference]: Without dead ends: 624 [2020-08-19 06:42:22,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2020-08-19 06:42:22,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-08-19 06:42:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 528. [2020-08-19 06:42:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-19 06:42:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 621 transitions. [2020-08-19 06:42:22,567 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 621 transitions. Word has length 153 [2020-08-19 06:42:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:22,568 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 621 transitions. [2020-08-19 06:42:22,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 06:42:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 621 transitions. [2020-08-19 06:42:22,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-19 06:42:22,571 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:42:22,572 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:42:22,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 06:42:22,572 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:42:22,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:42:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash 700598337, now seen corresponding path program 2 times [2020-08-19 06:42:22,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:42:22,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619530373] [2020-08-19 06:42:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:42:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,934 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:42:22,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:42:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:42:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:42:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:42:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:42:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:42:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 06:42:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:42:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-19 06:42:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-19 06:42:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-08-19 06:42:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 06:42:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 49 proven. 25 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-08-19 06:42:23,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619530373] [2020-08-19 06:42:23,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:42:23,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 06:42:23,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971787049] [2020-08-19 06:42:23,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 06:42:23,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:42:23,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 06:42:23,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-08-19 06:42:23,425 INFO L87 Difference]: Start difference. First operand 528 states and 621 transitions. Second operand 13 states. [2020-08-19 06:42:24,668 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:24,933 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:42:26,602 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 06:42:26,842 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:27,072 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:27,529 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-08-19 06:42:29,113 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-08-19 06:42:29,377 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 06:42:29,686 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:42:29,954 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:42:30,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:30,937 INFO L93 Difference]: Finished difference Result 1442 states and 1789 transitions. [2020-08-19 06:42:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-19 06:42:30,938 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-08-19 06:42:30,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:30,945 INFO L225 Difference]: With dead ends: 1442 [2020-08-19 06:42:30,945 INFO L226 Difference]: Without dead ends: 999 [2020-08-19 06:42:30,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 80 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2020-08-19 06:42:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2020-08-19 06:42:31,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 850. [2020-08-19 06:42:31,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-08-19 06:42:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 986 transitions. [2020-08-19 06:42:31,119 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 986 transitions. Word has length 207 [2020-08-19 06:42:31,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:31,119 INFO L479 AbstractCegarLoop]: Abstraction has 850 states and 986 transitions. [2020-08-19 06:42:31,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 06:42:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 986 transitions. [2020-08-19 06:42:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-19 06:42:31,123 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:42:31,123 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:42:31,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 06:42:31,124 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:42:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:42:31,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1257976449, now seen corresponding path program 1 times [2020-08-19 06:42:31,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:42:31,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933888264] [2020-08-19 06:42:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:42:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,418 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:42:31,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:42:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:42:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:42:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:42:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:42:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:42:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:42:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:42:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 06:42:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:42:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:42:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-19 06:42:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-19 06:42:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:42:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:42:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:42:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-08-19 06:42:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 06:42:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:42:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-08-19 06:42:31,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933888264] [2020-08-19 06:42:31,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:42:31,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 06:42:31,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682722323] [2020-08-19 06:42:31,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 06:42:31,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:42:31,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 06:42:31,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-08-19 06:42:31,688 INFO L87 Difference]: Start difference. First operand 850 states and 986 transitions. Second operand 13 states. [2020-08-19 06:42:32,242 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:32,476 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:32,710 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:34,147 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:42:34,398 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:42:34,667 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:34,918 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:42:35,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:42:35,232 INFO L93 Difference]: Finished difference Result 1133 states and 1322 transitions. [2020-08-19 06:42:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 06:42:35,233 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 207 [2020-08-19 06:42:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:42:35,234 INFO L225 Difference]: With dead ends: 1133 [2020-08-19 06:42:35,234 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 06:42:35,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-08-19 06:42:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 06:42:35,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 06:42:35,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 06:42:35,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 06:42:35,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-08-19 06:42:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:42:35,242 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 06:42:35,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 06:42:35,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 06:42:35,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 06:42:35,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 06:42:35,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 06:42:35,428 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-08-19 06:42:35,766 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-08-19 06:42:37,308 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 271 DAG size of output: 246