/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=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 03:29:09,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:29:09,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:29:10,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:29:10,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:29:10,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:29:10,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:29:10,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:29:10,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:29:10,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:29:10,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:29:10,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:29:10,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:29:10,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:29:10,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:29:10,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:29:10,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:29:10,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:29:10,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:29:10,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:29:10,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:29:10,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:29:10,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:29:10,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:29:10,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 03:29:10,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 03:29:10,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 03:29:10,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 03:29:10,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 03:29:10,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 03:29:10,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 03:29:10,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 03:29:10,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 03:29:10,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 03:29:10,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 03:29:10,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 03:29:10,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 03:29:10,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 03:29:10,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:29:10,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:29:10,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:29:10,081 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 03:29:10,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:29:10,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:29:10,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:29:10,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:29:10,116 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:29:10,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:29:10,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:29:10,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:29:10,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:29:10,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:29:10,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:29:10,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:29:10,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:29:10,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:29:10,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:29:10,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:29:10,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:29:10,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:29:10,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:29:10,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:29:10,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:29:10,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:29:10,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:29:10,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:29:10,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:29:10,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:29:10,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:29:10,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:29:10,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:29:10,122 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=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:29:10,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:29:10,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:29:10,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:29:10,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:29:10,424 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:29:10,425 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-08-19 03:29:10,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c290d3cf8/bb3c57af707044d8b085c1cc665e2c18/FLAG186f382ab [2020-08-19 03:29:10,971 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:29:10,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-08-19 03:29:10,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c290d3cf8/bb3c57af707044d8b085c1cc665e2c18/FLAG186f382ab [2020-08-19 03:29:11,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c290d3cf8/bb3c57af707044d8b085c1cc665e2c18 [2020-08-19 03:29:11,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:29:11,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:29:11,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:29:11,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:29:11,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:29:11,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:11,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63832a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11, skipping insertion in model container [2020-08-19 03:29:11,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:11,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:29:11,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:29:11,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:29:11,769 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:29:11,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:29:11,927 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:29:11,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11 WrapperNode [2020-08-19 03:29:11,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:29:11,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:29:11,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:29:11,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:29:11,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:11,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:11,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:11,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:11,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:12,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:12,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (1/1) ... [2020-08-19 03:29:12,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:29:12,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:29:12,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:29:12,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:29:12,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (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 03:29:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:29:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:29:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 03:29:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 03:29:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 03:29:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 03:29:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 03:29:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 03:29:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 03:29:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 03:29:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 03:29:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 03:29:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 03:29:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:29:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 03:29:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 03:29:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 03:29:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 03:29:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-19 03:29:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 03:29:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 03:29:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 03:29:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 03:29:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 03:29:12,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 03:29:12,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 03:29:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 03:29:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 03:29:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 03:29:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 03:29:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 03:29:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 03:29:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 03:29:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 03:29:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 03:29:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 03:29:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 03:29:12,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 03:29:12,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 03:29:12,101 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 03:29:12,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 03:29:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:29:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 03:29:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 03:29:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 03:29:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 03:29:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 03:29:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 03:29:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 03:29:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 03:29:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 03:29:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 03:29:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 03:29:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 03:29:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:29:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 03:29:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 03:29:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 03:29:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 03:29:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 03:29:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 03:29:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 03:29:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 03:29:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:29:13,117 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:29:13,117 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 03:29:13,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:29:13 BoogieIcfgContainer [2020-08-19 03:29:13,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:29:13,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:29:13,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:29:13,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:29:13,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:29:11" (1/3) ... [2020-08-19 03:29:13,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2586d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:29:13, skipping insertion in model container [2020-08-19 03:29:13,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:29:11" (2/3) ... [2020-08-19 03:29:13,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2586d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:29:13, skipping insertion in model container [2020-08-19 03:29:13,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:29:13" (3/3) ... [2020-08-19 03:29:13,130 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-08-19 03:29:13,140 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:29:13,148 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:29:13,162 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:29:13,186 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:29:13,187 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:29:13,187 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:29:13,187 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:29:13,187 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:29:13,187 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:29:13,188 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:29:13,188 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:29:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-08-19 03:29:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 03:29:13,220 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:13,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:13,221 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:13,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:13,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1951083148, now seen corresponding path program 1 times [2020-08-19 03:29:13,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:13,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012955909] [2020-08-19 03:29:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:13,923 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:13,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:13,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:13,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:13,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:14,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:14,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:29:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:14,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 03:29:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:14,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 03:29:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:14,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012955909] [2020-08-19 03:29:14,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:14,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 03:29:14,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044445977] [2020-08-19 03:29:14,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 03:29:14,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:14,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 03:29:14,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 03:29:14,080 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 4 states. [2020-08-19 03:29:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:15,097 INFO L93 Difference]: Finished difference Result 308 states and 391 transitions. [2020-08-19 03:29:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 03:29:15,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 03:29:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:15,113 INFO L225 Difference]: With dead ends: 308 [2020-08-19 03:29:15,114 INFO L226 Difference]: Without dead ends: 170 [2020-08-19 03:29:15,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 03:29:15,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-08-19 03:29:15,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 139. [2020-08-19 03:29:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-08-19 03:29:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 161 transitions. [2020-08-19 03:29:15,201 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 161 transitions. Word has length 59 [2020-08-19 03:29:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:15,201 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 161 transitions. [2020-08-19 03:29:15,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 03:29:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 161 transitions. [2020-08-19 03:29:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 03:29:15,205 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:15,206 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:15,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:29:15,206 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:15,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:15,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1220523940, now seen corresponding path program 1 times [2020-08-19 03:29:15,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:15,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146265709] [2020-08-19 03:29:15,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,525 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 03:29:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 03:29:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 03:29:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:15,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146265709] [2020-08-19 03:29:15,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:15,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 03:29:15,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315847017] [2020-08-19 03:29:15,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 03:29:15,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:15,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 03:29:15,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 03:29:15,606 INFO L87 Difference]: Start difference. First operand 139 states and 161 transitions. Second operand 5 states. [2020-08-19 03:29:16,081 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:16,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:16,888 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2020-08-19 03:29:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 03:29:16,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 03:29:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:16,897 INFO L225 Difference]: With dead ends: 244 [2020-08-19 03:29:16,897 INFO L226 Difference]: Without dead ends: 160 [2020-08-19 03:29:16,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 03:29:16,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-19 03:29:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 130. [2020-08-19 03:29:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-19 03:29:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2020-08-19 03:29:16,976 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 60 [2020-08-19 03:29:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:16,976 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2020-08-19 03:29:16,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 03:29:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2020-08-19 03:29:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 03:29:16,983 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:16,983 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:16,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:29:16,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:16,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1125066517, now seen corresponding path program 1 times [2020-08-19 03:29:16,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:16,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428870634] [2020-08-19 03:29:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,301 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:29:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 03:29:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:29:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:17,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428870634] [2020-08-19 03:29:17,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:17,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:29:17,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048025548] [2020-08-19 03:29:17,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:29:17,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:17,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:29:17,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:29:17,400 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand 9 states. [2020-08-19 03:29:17,796 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:18,120 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:18,349 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:18,574 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:19,410 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:20,956 INFO L93 Difference]: Finished difference Result 435 states and 529 transitions. [2020-08-19 03:29:20,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 03:29:20,957 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-19 03:29:20,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:20,963 INFO L225 Difference]: With dead ends: 435 [2020-08-19 03:29:20,963 INFO L226 Difference]: Without dead ends: 333 [2020-08-19 03:29:20,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:29:20,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-08-19 03:29:21,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 268. [2020-08-19 03:29:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-08-19 03:29:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 318 transitions. [2020-08-19 03:29:21,048 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 318 transitions. Word has length 64 [2020-08-19 03:29:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:21,050 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 318 transitions. [2020-08-19 03:29:21,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:29:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 318 transitions. [2020-08-19 03:29:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-19 03:29:21,055 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:21,055 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:21,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 03:29:21,056 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:21,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1836372268, now seen corresponding path program 1 times [2020-08-19 03:29:21,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:21,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765525293] [2020-08-19 03:29:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,341 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:29:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 03:29:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:29:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 03:29:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 03:29:21,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765525293] [2020-08-19 03:29:21,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:21,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:29:21,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48406197] [2020-08-19 03:29:21,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:29:21,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:21,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:29:21,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:29:21,461 INFO L87 Difference]: Start difference. First operand 268 states and 318 transitions. Second operand 9 states. [2020-08-19 03:29:21,803 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:22,473 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:23,306 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:23,527 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:23,814 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:24,070 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:24,518 INFO L93 Difference]: Finished difference Result 679 states and 862 transitions. [2020-08-19 03:29:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 03:29:24,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-19 03:29:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:24,527 INFO L225 Difference]: With dead ends: 679 [2020-08-19 03:29:24,527 INFO L226 Difference]: Without dead ends: 439 [2020-08-19 03:29:24,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 03:29:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-19 03:29:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 379. [2020-08-19 03:29:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-08-19 03:29:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 451 transitions. [2020-08-19 03:29:24,640 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 451 transitions. Word has length 70 [2020-08-19 03:29:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:24,641 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 451 transitions. [2020-08-19 03:29:24,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:29:24,641 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 451 transitions. [2020-08-19 03:29:24,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-19 03:29:24,643 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:24,643 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:24,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 03:29:24,644 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:24,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:24,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1329110427, now seen corresponding path program 1 times [2020-08-19 03:29:24,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:24,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242513267] [2020-08-19 03:29:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:24,956 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:24,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:29:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 03:29:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 03:29:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 03:29:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:25,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242513267] [2020-08-19 03:29:25,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:25,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:29:25,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198770378] [2020-08-19 03:29:25,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:29:25,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:25,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:29:25,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:29:25,218 INFO L87 Difference]: Start difference. First operand 379 states and 451 transitions. Second operand 9 states. [2020-08-19 03:29:25,631 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:26,527 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:26,775 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:27,041 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:27,293 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:28,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:28,529 INFO L93 Difference]: Finished difference Result 1185 states and 1563 transitions. [2020-08-19 03:29:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 03:29:28,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-08-19 03:29:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:28,535 INFO L225 Difference]: With dead ends: 1185 [2020-08-19 03:29:28,535 INFO L226 Difference]: Without dead ends: 834 [2020-08-19 03:29:28,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:29:28,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-19 03:29:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 717. [2020-08-19 03:29:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-08-19 03:29:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 858 transitions. [2020-08-19 03:29:28,681 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 858 transitions. Word has length 102 [2020-08-19 03:29:28,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:28,683 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 858 transitions. [2020-08-19 03:29:28,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:29:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 858 transitions. [2020-08-19 03:29:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-19 03:29:28,687 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:28,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:28,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 03:29:28,688 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:28,688 INFO L82 PathProgramCache]: Analyzing trace with hash 359529404, now seen corresponding path program 1 times [2020-08-19 03:29:28,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:28,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016238563] [2020-08-19 03:29:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:28,982 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:28,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:28,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:29:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 03:29:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 03:29:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 03:29:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:29,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016238563] [2020-08-19 03:29:29,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:29,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:29:29,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640442266] [2020-08-19 03:29:29,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:29:29,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:29,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:29:29,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:29:29,097 INFO L87 Difference]: Start difference. First operand 717 states and 858 transitions. Second operand 9 states. [2020-08-19 03:29:30,077 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:30,310 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:30,562 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:30,797 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:31,459 INFO L93 Difference]: Finished difference Result 1536 states and 1964 transitions. [2020-08-19 03:29:31,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 03:29:31,460 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-08-19 03:29:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:31,468 INFO L225 Difference]: With dead ends: 1536 [2020-08-19 03:29:31,468 INFO L226 Difference]: Without dead ends: 847 [2020-08-19 03:29:31,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:29:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-08-19 03:29:31,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 737. [2020-08-19 03:29:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-08-19 03:29:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 878 transitions. [2020-08-19 03:29:31,651 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 878 transitions. Word has length 102 [2020-08-19 03:29:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:31,651 INFO L479 AbstractCegarLoop]: Abstraction has 737 states and 878 transitions. [2020-08-19 03:29:31,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:29:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 878 transitions. [2020-08-19 03:29:31,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-19 03:29:31,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:31,657 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:31,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 03:29:31,658 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:31,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1689858438, now seen corresponding path program 1 times [2020-08-19 03:29:31,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:31,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926441969] [2020-08-19 03:29:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,912 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:31,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:29:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 03:29:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:31,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 03:29:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 03:29:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:32,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926441969] [2020-08-19 03:29:32,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:32,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 03:29:32,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767834235] [2020-08-19 03:29:32,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 03:29:32,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:32,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 03:29:32,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 03:29:32,049 INFO L87 Difference]: Start difference. First operand 737 states and 878 transitions. Second operand 11 states. [2020-08-19 03:29:32,612 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:32,834 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:33,059 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:33,762 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:33,980 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:34,206 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:35,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:35,041 INFO L93 Difference]: Finished difference Result 1360 states and 1702 transitions. [2020-08-19 03:29:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 03:29:35,041 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-08-19 03:29:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:35,046 INFO L225 Difference]: With dead ends: 1360 [2020-08-19 03:29:35,047 INFO L226 Difference]: Without dead ends: 651 [2020-08-19 03:29:35,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:29:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-08-19 03:29:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 578. [2020-08-19 03:29:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-08-19 03:29:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 674 transitions. [2020-08-19 03:29:35,142 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 674 transitions. Word has length 102 [2020-08-19 03:29:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:35,143 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 674 transitions. [2020-08-19 03:29:35,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 03:29:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 674 transitions. [2020-08-19 03:29:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-08-19 03:29:35,146 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:35,147 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:35,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 03:29:35,147 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:35,148 INFO L82 PathProgramCache]: Analyzing trace with hash -764679949, now seen corresponding path program 1 times [2020-08-19 03:29:35,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:35,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343151894] [2020-08-19 03:29:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,602 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:29:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:29:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 03:29:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:29:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 03:29:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:29:35,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343151894] [2020-08-19 03:29:35,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:29:35,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 03:29:35,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564451886] [2020-08-19 03:29:35,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 03:29:35,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:35,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 03:29:35,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 03:29:35,792 INFO L87 Difference]: Start difference. First operand 578 states and 674 transitions. Second operand 12 states. [2020-08-19 03:29:36,221 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:36,842 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:37,443 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:37,760 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:38,009 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:38,291 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:38,544 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:39,793 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:40,077 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:40,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:40,618 INFO L93 Difference]: Finished difference Result 1691 states and 2129 transitions. [2020-08-19 03:29:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 03:29:40,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2020-08-19 03:29:40,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:40,626 INFO L225 Difference]: With dead ends: 1691 [2020-08-19 03:29:40,627 INFO L226 Difference]: Without dead ends: 1313 [2020-08-19 03:29:40,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 03:29:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2020-08-19 03:29:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1197. [2020-08-19 03:29:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-08-19 03:29:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1399 transitions. [2020-08-19 03:29:40,786 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1399 transitions. Word has length 106 [2020-08-19 03:29:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:40,787 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1399 transitions. [2020-08-19 03:29:40,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 03:29:40,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1399 transitions. [2020-08-19 03:29:40,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-19 03:29:40,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:40,790 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:40,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 03:29:40,791 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:40,791 INFO L82 PathProgramCache]: Analyzing trace with hash -60868023, now seen corresponding path program 1 times [2020-08-19 03:29:40,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:40,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951516263] [2020-08-19 03:29:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,081 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:41,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:29:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 03:29:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:29:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:29:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 03:29:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-19 03:29:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-19 03:29:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-19 03:29:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-19 03:29:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-19 03:29:41,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951516263] [2020-08-19 03:29:41,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:29:41,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 03:29:41,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211370869] [2020-08-19 03:29:41,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 03:29:41,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:41,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 03:29:41,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:29:41,355 INFO L87 Difference]: Start difference. First operand 1197 states and 1399 transitions. Second operand 16 states. [2020-08-19 03:29:41,993 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:42,468 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:29:42,841 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:29:43,152 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:29:43,729 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:44,016 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:44,362 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:29:44,625 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:29:45,693 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:46,151 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:46,438 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:46,754 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:47,195 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:29:47,701 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:29:47,935 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:48,179 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:48,430 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:48,910 INFO L93 Difference]: Finished difference Result 2225 states and 2688 transitions. [2020-08-19 03:29:48,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-19 03:29:48,911 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 149 [2020-08-19 03:29:48,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:48,917 INFO L225 Difference]: With dead ends: 2225 [2020-08-19 03:29:48,918 INFO L226 Difference]: Without dead ends: 1222 [2020-08-19 03:29:48,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-08-19 03:29:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-08-19 03:29:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1102. [2020-08-19 03:29:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-08-19 03:29:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1268 transitions. [2020-08-19 03:29:49,096 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1268 transitions. Word has length 149 [2020-08-19 03:29:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:49,096 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1268 transitions. [2020-08-19 03:29:49,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 03:29:49,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1268 transitions. [2020-08-19 03:29:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-08-19 03:29:49,106 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:49,106 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:49,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 03:29:49,107 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:49,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1576976523, now seen corresponding path program 1 times [2020-08-19 03:29:49,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:49,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839123112] [2020-08-19 03:29:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,440 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:49,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:29:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 03:29:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:29:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:29:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:29:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:29:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-08-19 03:29:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:29:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-19 03:29:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-08-19 03:29:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:29:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-08-19 03:29:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-19 03:29:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-08-19 03:29:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-08-19 03:29:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 104 proven. 48 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-08-19 03:29:49,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839123112] [2020-08-19 03:29:49,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:29:49,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 03:29:49,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657447330] [2020-08-19 03:29:49,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 03:29:49,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:49,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 03:29:49,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:29:49,988 INFO L87 Difference]: Start difference. First operand 1102 states and 1268 transitions. Second operand 16 states. [2020-08-19 03:29:51,307 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:29:51,570 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:51,808 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:52,047 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:53,166 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:54,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:29:54,873 INFO L93 Difference]: Finished difference Result 3031 states and 3632 transitions. [2020-08-19 03:29:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-19 03:29:54,873 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 302 [2020-08-19 03:29:54,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:29:54,883 INFO L225 Difference]: With dead ends: 3031 [2020-08-19 03:29:54,884 INFO L226 Difference]: Without dead ends: 1752 [2020-08-19 03:29:54,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 111 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2020-08-19 03:29:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2020-08-19 03:29:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1430. [2020-08-19 03:29:55,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2020-08-19 03:29:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1674 transitions. [2020-08-19 03:29:55,310 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1674 transitions. Word has length 302 [2020-08-19 03:29:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:29:55,311 INFO L479 AbstractCegarLoop]: Abstraction has 1430 states and 1674 transitions. [2020-08-19 03:29:55,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 03:29:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1674 transitions. [2020-08-19 03:29:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-19 03:29:55,322 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:29:55,322 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:29:55,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 03:29:55,322 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:29:55,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:29:55,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1865964208, now seen corresponding path program 1 times [2020-08-19 03:29:55,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:29:55,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678950347] [2020-08-19 03:29:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:29:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,622 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:29:55,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:29:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:29:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:29:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 03:29:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:29:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:29:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:29:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:29:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 03:29:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-19 03:29:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:29:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:29:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:29:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-08-19 03:29:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-19 03:29:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:29:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-08-19 03:29:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:29:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-08-19 03:29:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:29:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:29:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:29:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:29:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-08-19 03:29:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:55,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-19 03:29:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:29:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 111 proven. 44 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-08-19 03:29:56,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678950347] [2020-08-19 03:29:56,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:29:56,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-19 03:29:56,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73629276] [2020-08-19 03:29:56,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-19 03:29:56,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:29:56,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-19 03:29:56,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-19 03:29:56,120 INFO L87 Difference]: Start difference. First operand 1430 states and 1674 transitions. Second operand 17 states. [2020-08-19 03:29:56,792 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:29:57,090 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:57,335 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:57,567 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:29:58,233 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:59,190 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:59,433 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:29:59,899 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:00,536 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:01,176 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:01,427 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:02,129 INFO L93 Difference]: Finished difference Result 2555 states and 3056 transitions. [2020-08-19 03:30:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 03:30:02,131 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 308 [2020-08-19 03:30:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:02,140 INFO L225 Difference]: With dead ends: 2555 [2020-08-19 03:30:02,140 INFO L226 Difference]: Without dead ends: 1457 [2020-08-19 03:30:02,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=370, Invalid=1436, Unknown=0, NotChecked=0, Total=1806 [2020-08-19 03:30:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2020-08-19 03:30:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1403. [2020-08-19 03:30:02,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1403 states. [2020-08-19 03:30:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1626 transitions. [2020-08-19 03:30:02,372 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1626 transitions. Word has length 308 [2020-08-19 03:30:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:02,373 INFO L479 AbstractCegarLoop]: Abstraction has 1403 states and 1626 transitions. [2020-08-19 03:30:02,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-19 03:30:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1626 transitions. [2020-08-19 03:30:02,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-19 03:30:02,382 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:02,382 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:02,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 03:30:02,383 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:02,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2055130084, now seen corresponding path program 1 times [2020-08-19 03:30:02,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:02,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668299952] [2020-08-19 03:30:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,667 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:02,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:30:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 03:30:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:30:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:30:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:30:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:30:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 03:30:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-19 03:30:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:30:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-08-19 03:30:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-19 03:30:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:30:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-19 03:30:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-19 03:30:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-19 03:30:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-19 03:30:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 82 proven. 4 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-08-19 03:30:02,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668299952] [2020-08-19 03:30:02,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:30:02,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 03:30:02,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651333757] [2020-08-19 03:30:02,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:30:02,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:02,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:30:02,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:30:02,936 INFO L87 Difference]: Start difference. First operand 1403 states and 1626 transitions. Second operand 9 states. [2020-08-19 03:30:03,716 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:04,932 INFO L93 Difference]: Finished difference Result 1737 states and 2054 transitions. [2020-08-19 03:30:04,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-19 03:30:04,933 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 309 [2020-08-19 03:30:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:04,935 INFO L225 Difference]: With dead ends: 1737 [2020-08-19 03:30:04,935 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 03:30:04,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-08-19 03:30:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 03:30:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 03:30:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 03:30:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 03:30:04,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 309 [2020-08-19 03:30:04,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:04,941 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 03:30:04,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:30:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 03:30:04,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 03:30:04,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 03:30:04,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 03:30:06,231 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 255 [2020-08-19 03:30:07,570 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 265