/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 17:16:48,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 17:16:48,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 17:16:48,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 17:16:48,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 17:16:48,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 17:16:48,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 17:16:48,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 17:16:48,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 17:16:48,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 17:16:48,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 17:16:48,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 17:16:48,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 17:16:48,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 17:16:48,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 17:16:48,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 17:16:48,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 17:16:48,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 17:16:48,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 17:16:48,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 17:16:48,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 17:16:48,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 17:16:48,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 17:16:48,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 17:16:48,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 17:16:48,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 17:16:48,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 17:16:48,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 17:16:48,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 17:16:48,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 17:16:48,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 17:16:48,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 17:16:48,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 17:16:48,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 17:16:48,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 17:16:48,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 17:16:48,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 17:16:48,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 17:16:48,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 17:16:48,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 17:16:48,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 17:16:48,091 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 [2020-08-21 17:16:48,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 17:16:48,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 17:16:48,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 17:16:48,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 17:16:48,138 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 17:16:48,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 17:16:48,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 17:16:48,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 17:16:48,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 17:16:48,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 17:16:48,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 17:16:48,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 17:16:48,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 17:16:48,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 17:16:48,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 17:16:48,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 17:16:48,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 17:16:48,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 17:16:48,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 17:16:48,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 17:16:48,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 17:16:48,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:16:48,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 17:16:48,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 17:16:48,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 17:16:48,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 17:16:48,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 17:16:48,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 17:16:48,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 17:16:48,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-08-21 17:16:48,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 17:16:48,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 17:16:48,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 17:16:48,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 17:16:48,494 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 17:16:48,495 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-21 17:16:48,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0888e358a/0a9efee8a0d7487e9c57c8c6246714eb/FLAGc1713bc76 [2020-08-21 17:16:49,088 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 17:16:49,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-21 17:16:49,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0888e358a/0a9efee8a0d7487e9c57c8c6246714eb/FLAGc1713bc76 [2020-08-21 17:16:49,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0888e358a/0a9efee8a0d7487e9c57c8c6246714eb [2020-08-21 17:16:49,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 17:16:49,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 17:16:49,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 17:16:49,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 17:16:49,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 17:16:49,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:16:49" (1/1) ... [2020-08-21 17:16:49,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9a5625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:49, skipping insertion in model container [2020-08-21 17:16:49,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:16:49" (1/1) ... [2020-08-21 17:16:49,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 17:16:49,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 17:16:49,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:16:49,876 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 17:16:50,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:16:50,078 INFO L208 MainTranslator]: Completed translation [2020-08-21 17:16:50,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50 WrapperNode [2020-08-21 17:16:50,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 17:16:50,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 17:16:50,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 17:16:50,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 17:16:50,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (1/1) ... [2020-08-21 17:16:50,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 17:16:50,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 17:16:50,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 17:16:50,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 17:16:50,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (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 [2020-08-21 17:16:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 17:16:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 17:16:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 17:16:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-21 17:16:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-21 17:16:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-21 17:16:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 17:16:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 17:16:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 17:16:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 17:16:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 17:16:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 17:16:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-21 17:16:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 17:16:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 17:16:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 17:16:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 17:16:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 17:16:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 17:16:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-21 17:16:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 17:16:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-21 17:16:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 17:16:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 17:16:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 17:16:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 17:16:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 17:16:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 17:16:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 17:16:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-21 17:16:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 17:16:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 17:16:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 17:16:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 17:16:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 17:16:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 17:16:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 17:16:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 17:16:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 17:16:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 17:16:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 17:16:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 17:16:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 17:16:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 17:16:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 17:16:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 17:16:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-21 17:16:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-21 17:16:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-21 17:16:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 17:16:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 17:16:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 17:16:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 17:16:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 17:16:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-21 17:16:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 17:16:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-21 17:16:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 17:16:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 17:16:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-21 17:16:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 17:16:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 17:16:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 17:16:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 17:16:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 17:16:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 17:16:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 17:16:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 17:16:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 17:16:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 17:16:51,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 17:16:51,436 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 17:16:51,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:16:51 BoogieIcfgContainer [2020-08-21 17:16:51,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 17:16:51,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 17:16:51,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 17:16:51,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 17:16:51,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:16:49" (1/3) ... [2020-08-21 17:16:51,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212b3b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:16:51, skipping insertion in model container [2020-08-21 17:16:51,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:16:50" (2/3) ... [2020-08-21 17:16:51,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212b3b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:16:51, skipping insertion in model container [2020-08-21 17:16:51,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:16:51" (3/3) ... [2020-08-21 17:16:51,456 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2020-08-21 17:16:51,467 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 17:16:51,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 17:16:51,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 17:16:51,513 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 17:16:51,513 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 17:16:51,514 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 17:16:51,514 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 17:16:51,514 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 17:16:51,514 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 17:16:51,514 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 17:16:51,515 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 17:16:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-21 17:16:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-21 17:16:51,549 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:16:51,550 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] [2020-08-21 17:16:51,550 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:16:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:16:51,557 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2020-08-21 17:16:51,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:16:51,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774707191] [2020-08-21 17:16:51,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:16:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,326 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:16:52,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:16:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:16:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:16:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:16:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:16:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:16:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 17:16:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:16:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 17:16:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 17:16:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:16:52,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774707191] [2020-08-21 17:16:52,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:16:52,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 17:16:52,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787966957] [2020-08-21 17:16:52,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 17:16:52,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:16:52,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 17:16:52,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 17:16:52,516 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-21 17:16:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:16:54,008 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2020-08-21 17:16:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 17:16:54,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-21 17:16:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:16:54,027 INFO L225 Difference]: With dead ends: 382 [2020-08-21 17:16:54,027 INFO L226 Difference]: Without dead ends: 210 [2020-08-21 17:16:54,032 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 [2020-08-21 17:16:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-08-21 17:16:54,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2020-08-21 17:16:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-08-21 17:16:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2020-08-21 17:16:54,141 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2020-08-21 17:16:54,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:16:54,142 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2020-08-21 17:16:54,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 17:16:54,142 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2020-08-21 17:16:54,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-21 17:16:54,146 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:16:54,150 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] [2020-08-21 17:16:54,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 17:16:54,150 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:16:54,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:16:54,151 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2020-08-21 17:16:54,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:16:54,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882495783] [2020-08-21 17:16:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:16:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,456 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:16:54,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:16:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:16:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:16:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:16:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:16:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:16:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 17:16:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:16:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 17:16:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 17:16:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:16:54,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882495783] [2020-08-21 17:16:54,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:16:54,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 17:16:54,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492437037] [2020-08-21 17:16:54,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 17:16:54,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:16:54,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 17:16:54,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:16:54,516 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 5 states. [2020-08-21 17:16:55,031 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:16:56,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:16:56,181 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2020-08-21 17:16:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 17:16:56,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-21 17:16:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:16:56,186 INFO L225 Difference]: With dead ends: 317 [2020-08-21 17:16:56,186 INFO L226 Difference]: Without dead ends: 200 [2020-08-21 17:16:56,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:16:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-08-21 17:16:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2020-08-21 17:16:56,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-08-21 17:16:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2020-08-21 17:16:56,237 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2020-08-21 17:16:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:16:56,238 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2020-08-21 17:16:56,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 17:16:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2020-08-21 17:16:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 17:16:56,240 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:16:56,240 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] [2020-08-21 17:16:56,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 17:16:56,241 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:16:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:16:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2020-08-21 17:16:56,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:16:56,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537917251] [2020-08-21 17:16:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:16:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,643 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:16:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:16:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:16:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:16:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:16:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:16:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:16:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 17:16:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:16:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 17:16:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 17:16:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:16:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:16:56,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537917251] [2020-08-21 17:16:56,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:16:56,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 17:16:56,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845574445] [2020-08-21 17:16:56,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:16:56,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:16:56,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:16:56,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:16:56,739 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 9 states. [2020-08-21 17:16:57,115 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:16:57,444 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:16:57,714 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:16:57,961 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:16:58,907 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:01,403 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2020-08-21 17:17:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 17:17:01,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-21 17:17:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:01,411 INFO L225 Difference]: With dead ends: 549 [2020-08-21 17:17:01,411 INFO L226 Difference]: Without dead ends: 413 [2020-08-21 17:17:01,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-21 17:17:01,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-08-21 17:17:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2020-08-21 17:17:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-08-21 17:17:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2020-08-21 17:17:01,507 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2020-08-21 17:17:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:01,508 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2020-08-21 17:17:01,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:17:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2020-08-21 17:17:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-21 17:17:01,510 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:01,511 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] [2020-08-21 17:17:01,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 17:17:01,511 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:01,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:01,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2020-08-21 17:17:01,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:01,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329446176] [2020-08-21 17:17:01,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,851 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:01,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 17:17:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 17:17:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 17:17:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 17:17:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 17:17:01,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329446176] [2020-08-21 17:17:01,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:17:01,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 17:17:01,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978061257] [2020-08-21 17:17:01,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:17:01,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:01,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:17:01,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:17:01,978 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 9 states. [2020-08-21 17:17:02,381 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:03,108 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:04,139 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:04,384 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:04,712 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:04,991 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:06,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:06,020 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2020-08-21 17:17:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 17:17:06,020 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-21 17:17:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:06,027 INFO L225 Difference]: With dead ends: 891 [2020-08-21 17:17:06,028 INFO L226 Difference]: Without dead ends: 575 [2020-08-21 17:17:06,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-21 17:17:06,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-08-21 17:17:06,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2020-08-21 17:17:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-08-21 17:17:06,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2020-08-21 17:17:06,146 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2020-08-21 17:17:06,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:06,147 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2020-08-21 17:17:06,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:17:06,147 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2020-08-21 17:17:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-21 17:17:06,150 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:06,150 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, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:17:06,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 17:17:06,151 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:06,151 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2020-08-21 17:17:06,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:06,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839955345] [2020-08-21 17:17:06,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,412 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 17:17:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 17:17:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 17:17:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 17:17:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:06,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:17:06,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839955345] [2020-08-21 17:17:06,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:17:06,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 17:17:06,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971020584] [2020-08-21 17:17:06,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:17:06,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:06,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:17:06,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:17:06,594 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 9 states. [2020-08-21 17:17:07,751 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:08,019 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 17:17:08,271 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:08,517 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:09,451 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2020-08-21 17:17:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 17:17:09,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-08-21 17:17:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:09,458 INFO L225 Difference]: With dead ends: 1079 [2020-08-21 17:17:09,458 INFO L226 Difference]: Without dead ends: 600 [2020-08-21 17:17:09,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-21 17:17:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-08-21 17:17:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2020-08-21 17:17:09,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-21 17:17:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-21 17:17:09,583 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2020-08-21 17:17:09,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:09,583 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-21 17:17:09,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:17:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-21 17:17:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-21 17:17:09,585 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:09,586 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, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:17:09,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 17:17:09,586 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:09,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2020-08-21 17:17:09,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:09,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870099548] [2020-08-21 17:17:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,884 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:09,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 17:17:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 17:17:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:09,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 17:17:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 17:17:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:17:10,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870099548] [2020-08-21 17:17:10,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:17:10,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 17:17:10,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394858709] [2020-08-21 17:17:10,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 17:17:10,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 17:17:10,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 17:17:10,048 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 11 states. [2020-08-21 17:17:10,632 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:10,907 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:11,146 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:12,015 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:12,298 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:12,576 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:13,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:13,797 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2020-08-21 17:17:13,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 17:17:13,798 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-08-21 17:17:13,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:13,805 INFO L225 Difference]: With dead ends: 1102 [2020-08-21 17:17:13,806 INFO L226 Difference]: Without dead ends: 610 [2020-08-21 17:17:13,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 17:17:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-08-21 17:17:13,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2020-08-21 17:17:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-21 17:17:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2020-08-21 17:17:13,913 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2020-08-21 17:17:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:13,913 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2020-08-21 17:17:13,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 17:17:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2020-08-21 17:17:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-21 17:17:13,917 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:13,917 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, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:17:13,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 17:17:13,917 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:13,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:13,918 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2020-08-21 17:17:13,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:13,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568274657] [2020-08-21 17:17:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,255 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 17:17:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 17:17:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 17:17:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 17:17:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:17:14,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568274657] [2020-08-21 17:17:14,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:17:14,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 17:17:14,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926410932] [2020-08-21 17:17:14,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 17:17:14,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:14,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 17:17:14,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:17:14,452 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 7 states. [2020-08-21 17:17:14,808 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:15,366 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:18,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:18,045 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2020-08-21 17:17:18,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 17:17:18,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-08-21 17:17:18,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:18,054 INFO L225 Difference]: With dead ends: 1603 [2020-08-21 17:17:18,055 INFO L226 Difference]: Without dead ends: 1103 [2020-08-21 17:17:18,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-21 17:17:18,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-21 17:17:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2020-08-21 17:17:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-08-21 17:17:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2020-08-21 17:17:18,279 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2020-08-21 17:17:18,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:18,280 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2020-08-21 17:17:18,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 17:17:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2020-08-21 17:17:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-21 17:17:18,286 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:18,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:17:18,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 17:17:18,286 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:18,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:18,287 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2020-08-21 17:17:18,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:18,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678248642] [2020-08-21 17:17:18,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,628 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:18,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 17:17:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 17:17:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-21 17:17:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 17:17:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 17:17:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 17:17:18,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678248642] [2020-08-21 17:17:18,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:17:18,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 17:17:18,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139275413] [2020-08-21 17:17:18,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 17:17:18,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:18,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 17:17:18,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-21 17:17:18,826 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand 12 states. [2020-08-21 17:17:19,433 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:20,212 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:20,975 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:21,297 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:21,550 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:21,846 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:22,107 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:24,646 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:24,973 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:25,818 INFO L93 Difference]: Finished difference Result 2915 states and 3744 transitions. [2020-08-21 17:17:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 17:17:25,819 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-08-21 17:17:25,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:25,835 INFO L225 Difference]: With dead ends: 2915 [2020-08-21 17:17:25,836 INFO L226 Difference]: Without dead ends: 2120 [2020-08-21 17:17:25,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-21 17:17:25,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-08-21 17:17:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1808. [2020-08-21 17:17:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1808 states. [2020-08-21 17:17:26,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2166 transitions. [2020-08-21 17:17:26,222 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2166 transitions. Word has length 117 [2020-08-21 17:17:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:26,226 INFO L479 AbstractCegarLoop]: Abstraction has 1808 states and 2166 transitions. [2020-08-21 17:17:26,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 17:17:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2166 transitions. [2020-08-21 17:17:26,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-21 17:17:26,231 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:26,232 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:17:26,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 17:17:26,232 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:26,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:26,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1963590153, now seen corresponding path program 1 times [2020-08-21 17:17:26,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:26,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960735165] [2020-08-21 17:17:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,619 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:26,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 17:17:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 17:17:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 17:17:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-21 17:17:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 17:17:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 17:17:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-21 17:17:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 17:17:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 17:17:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-21 17:17:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-21 17:17:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-21 17:17:26,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960735165] [2020-08-21 17:17:26,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:17:26,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 17:17:26,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496519872] [2020-08-21 17:17:26,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 17:17:26,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:26,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 17:17:26,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-21 17:17:26,976 INFO L87 Difference]: Start difference. First operand 1808 states and 2166 transitions. Second operand 16 states. [2020-08-21 17:17:27,563 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:27,916 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 17:17:28,188 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 17:17:28,472 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 17:17:29,220 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:29,510 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:29,862 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 17:17:30,171 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 17:17:31,737 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:32,338 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:32,635 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 17:17:32,981 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:33,562 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:33,985 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:34,784 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:35,078 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 17:17:35,738 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 17:17:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:36,656 INFO L93 Difference]: Finished difference Result 3877 states and 4776 transitions. [2020-08-21 17:17:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-21 17:17:36,657 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2020-08-21 17:17:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:36,672 INFO L225 Difference]: With dead ends: 3877 [2020-08-21 17:17:36,672 INFO L226 Difference]: Without dead ends: 2287 [2020-08-21 17:17:36,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-21 17:17:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-08-21 17:17:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2095. [2020-08-21 17:17:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-08-21 17:17:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2456 transitions. [2020-08-21 17:17:37,071 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2456 transitions. Word has length 195 [2020-08-21 17:17:37,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:37,072 INFO L479 AbstractCegarLoop]: Abstraction has 2095 states and 2456 transitions. [2020-08-21 17:17:37,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 17:17:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2456 transitions. [2020-08-21 17:17:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-08-21 17:17:37,085 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:37,086 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 17:17:37,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 17:17:37,086 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:37,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1212078623, now seen corresponding path program 1 times [2020-08-21 17:17:37,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:37,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221115782] [2020-08-21 17:17:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,491 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 17:17:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 17:17:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 17:17:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-21 17:17:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 17:17:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 17:17:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 17:17:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 17:17:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 17:17:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-21 17:17:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 17:17:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:37,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 17:17:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 17:17:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-08-21 17:17:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-21 17:17:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 17:17:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-21 17:17:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-08-21 17:17:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2020-08-21 17:17:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2020-08-21 17:17:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-08-21 17:17:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 109 proven. 48 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-21 17:17:38,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221115782] [2020-08-21 17:17:38,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:17:38,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-21 17:17:38,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177079881] [2020-08-21 17:17:38,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-21 17:17:38,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:38,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-21 17:17:38,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-08-21 17:17:38,484 INFO L87 Difference]: Start difference. First operand 2095 states and 2456 transitions. Second operand 17 states. [2020-08-21 17:17:40,121 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 17:17:40,403 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:40,682 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:40,939 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 17:17:42,014 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 17:17:45,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:17:45,186 INFO L93 Difference]: Finished difference Result 6070 states and 7635 transitions. [2020-08-21 17:17:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-08-21 17:17:45,187 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 371 [2020-08-21 17:17:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:17:45,213 INFO L225 Difference]: With dead ends: 6070 [2020-08-21 17:17:45,213 INFO L226 Difference]: Without dead ends: 3630 [2020-08-21 17:17:45,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=433, Invalid=1547, Unknown=0, NotChecked=0, Total=1980 [2020-08-21 17:17:45,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3630 states. [2020-08-21 17:17:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3630 to 2854. [2020-08-21 17:17:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2854 states. [2020-08-21 17:17:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 3425 transitions. [2020-08-21 17:17:45,916 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 3425 transitions. Word has length 371 [2020-08-21 17:17:45,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:17:45,917 INFO L479 AbstractCegarLoop]: Abstraction has 2854 states and 3425 transitions. [2020-08-21 17:17:45,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-21 17:17:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 3425 transitions. [2020-08-21 17:17:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-08-21 17:17:45,934 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:17:45,935 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 17:17:45,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 17:17:45,936 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:17:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:17:45,936 INFO L82 PathProgramCache]: Analyzing trace with hash 353451792, now seen corresponding path program 1 times [2020-08-21 17:17:45,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:17:45,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079239911] [2020-08-21 17:17:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:17:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,223 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:17:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:17:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:17:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:17:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 17:17:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 17:17:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 17:17:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-21 17:17:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 17:17:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 17:17:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 17:17:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 17:17:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 17:17:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 17:17:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-08-21 17:17:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:17:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 17:17:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 17:17:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 17:17:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-21 17:17:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:17:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2020-08-21 17:17:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 17:17:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 17:17:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:17:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:17:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-21 17:17:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2020-08-21 17:17:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:17:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 90 proven. 44 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-08-21 17:17:46,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079239911] [2020-08-21 17:17:46,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:17:46,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 17:17:46,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956134320] [2020-08-21 17:17:46,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 17:17:46,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:17:46,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 17:17:46,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-21 17:17:46,738 INFO L87 Difference]: Start difference. First operand 2854 states and 3425 transitions. Second operand 16 states.