/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:12:34,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:12:34,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:12:34,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:12:34,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:12:34,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:12:34,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:12:34,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:12:34,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:12:34,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:12:34,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:12:34,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:12:34,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:12:34,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:12:34,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:12:34,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:12:34,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:12:34,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:12:34,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:12:34,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:12:34,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:12:34,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:12:34,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:12:34,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:12:34,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:12:34,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:12:34,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:12:34,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:12:34,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:12:34,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:12:34,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:12:34,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:12:34,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:12:34,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:12:34,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:12:34,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:12:34,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:12:34,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:12:34,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:12:34,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:12:34,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:12:34,668 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 [2020-09-24 19:12:34,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:12:34,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:12:34,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:12:34,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:12:34,696 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:12:34,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:12:34,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:12:34,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:12:34,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:12:34,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:12:34,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:12:34,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:12:34,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:12:34,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:12:34,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:12:34,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:12:34,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:12:34,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:12:34,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:12:34,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:12:34,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:12:34,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:34,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:12:34,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:12:34,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:12:34,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:12:34,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:12:34,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:12:34,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:12:34,701 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:12:35,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:12:35,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:12:35,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:12:35,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:12:35,185 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:12:35,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 19:12:35,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5abce4b65/f85ae5190d04489bbcda04e49b0a363e/FLAG88bd2de60 [2020-09-24 19:12:35,920 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:12:35,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 19:12:35,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5abce4b65/f85ae5190d04489bbcda04e49b0a363e/FLAG88bd2de60 [2020-09-24 19:12:36,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5abce4b65/f85ae5190d04489bbcda04e49b0a363e [2020-09-24 19:12:36,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:12:36,162 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:12:36,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:36,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:12:36,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:12:36,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36, skipping insertion in model container [2020-09-24 19:12:36,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:12:36,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:12:36,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:36,775 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:12:36,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:36,910 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:12:36,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36 WrapperNode [2020-09-24 19:12:36,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:36,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:12:36,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:12:36,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:12:36,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:36,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:37,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (1/1) ... [2020-09-24 19:12:37,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:12:37,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:12:37,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:12:37,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:12:37,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (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 [2020-09-24 19:12:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:12:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:12:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:12:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:12:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:12:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:12:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:12:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:12:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:12:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:12:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:12:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:12:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:12:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:12:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:12:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:12:37,086 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:12:37,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:37,087 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:12:37,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:12:37,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:12:37,088 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:12:37,089 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:12:37,089 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:12:37,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:12:37,090 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:12:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:12:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:12:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:12:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:12:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:12:37,093 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:12:37,093 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:12:37,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:12:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:12:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:12:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:12:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:12:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:12:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:12:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:12:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:12:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:12:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:12:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:12:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:12:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:12:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:12:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:12:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:12:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:12:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:12:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:12:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:12:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:12:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:12:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:12:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 19:12:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:12:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:12:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:12:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:12:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:12:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:12:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:12:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:12:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:12:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:12:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:12:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:12:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:12:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:12:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:12:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:12:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:12:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:12:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:12:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:12:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:12:38,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:12:38,357 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:12:38,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:38 BoogieIcfgContainer [2020-09-24 19:12:38,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:12:38,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:12:38,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:12:38,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:12:38,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:12:36" (1/3) ... [2020-09-24 19:12:38,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9e009d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:38, skipping insertion in model container [2020-09-24 19:12:38,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:36" (2/3) ... [2020-09-24 19:12:38,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9e009d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:38, skipping insertion in model container [2020-09-24 19:12:38,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:38" (3/3) ... [2020-09-24 19:12:38,386 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-24 19:12:38,397 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:12:38,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:12:38,437 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:12:38,470 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:12:38,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:12:38,471 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:12:38,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:12:38,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:12:38,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:12:38,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:12:38,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:12:38,502 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 19:12:38,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:12:38,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:38,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:38,523 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:38,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-24 19:12:38,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:38,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090891848] [2020-09-24 19:12:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:39,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:39,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:39,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:39,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:12:39,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:39,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:12:39,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:12:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:12:40,298 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:40,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:40,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 19:12:40,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:40,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:40,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:12:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:40,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090891848] [2020-09-24 19:12:40,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:40,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:12:40,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889745449] [2020-09-24 19:12:40,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:12:40,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:40,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:12:40,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:40,699 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-24 19:12:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:42,236 INFO L93 Difference]: Finished difference Result 570 states and 675 transitions. [2020-09-24 19:12:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:12:42,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:12:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:42,261 INFO L225 Difference]: With dead ends: 570 [2020-09-24 19:12:42,261 INFO L226 Difference]: Without dead ends: 345 [2020-09-24 19:12:42,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-24 19:12:42,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-09-24 19:12:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-24 19:12:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 327 transitions. [2020-09-24 19:12:42,375 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 327 transitions. Word has length 142 [2020-09-24 19:12:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:42,376 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 327 transitions. [2020-09-24 19:12:42,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:12:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 327 transitions. [2020-09-24 19:12:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:12:42,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:42,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:42,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:12:42,382 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:42,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:42,383 INFO L82 PathProgramCache]: Analyzing trace with hash 277442402, now seen corresponding path program 1 times [2020-09-24 19:12:42,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:42,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856769840] [2020-09-24 19:12:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:43,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:43,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:12:43,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-09-24 19:12:43,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:12:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:43,835 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:43,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:43,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:43,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:43,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:43,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 19:12:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:43,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:43,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:43,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:43,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:43,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:43,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:43,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:43,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:43,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:43,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:43,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:43,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:43,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:43,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:43,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:43,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:43,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:43,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:44,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:44,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:44,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:44,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:44,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:44,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:12:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:44,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:44,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:44,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:44,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:44,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:44,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:44,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:44,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856769840] [2020-09-24 19:12:44,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:44,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:12:44,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870932718] [2020-09-24 19:12:44,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:12:44,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:44,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:12:44,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:12:44,057 INFO L87 Difference]: Start difference. First operand 299 states and 327 transitions. Second operand 4 states. [2020-09-24 19:12:44,781 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:45,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:45,940 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2020-09-24 19:12:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:12:45,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:12:45,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:45,947 INFO L225 Difference]: With dead ends: 483 [2020-09-24 19:12:45,947 INFO L226 Difference]: Without dead ends: 328 [2020-09-24 19:12:45,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-24 19:12:45,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2020-09-24 19:12:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-24 19:12:45,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 314 transitions. [2020-09-24 19:12:45,999 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 314 transitions. Word has length 143 [2020-09-24 19:12:45,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:45,999 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 314 transitions. [2020-09-24 19:12:46,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:12:46,000 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2020-09-24 19:12:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:12:46,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:46,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:46,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:12:46,003 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:46,004 INFO L82 PathProgramCache]: Analyzing trace with hash -863874740, now seen corresponding path program 1 times [2020-09-24 19:12:46,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:46,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120304844] [2020-09-24 19:12:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:46,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:46,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:12:47,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:47,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:12:47,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:12:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,371 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:47,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 19:12:47,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:47,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:47,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:47,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:47,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:47,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:47,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:47,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:12:47,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:12:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:47,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:47,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:12:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:47,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:47,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:47,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:47,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120304844] [2020-09-24 19:12:47,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:47,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:12:47,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258429429] [2020-09-24 19:12:47,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:12:47,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:47,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:12:47,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:47,586 INFO L87 Difference]: Start difference. First operand 289 states and 314 transitions. Second operand 5 states. [2020-09-24 19:12:48,074 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:49,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:49,241 INFO L93 Difference]: Finished difference Result 529 states and 608 transitions. [2020-09-24 19:12:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:12:49,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:12:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:49,248 INFO L225 Difference]: With dead ends: 529 [2020-09-24 19:12:49,249 INFO L226 Difference]: Without dead ends: 350 [2020-09-24 19:12:49,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:12:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-09-24 19:12:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 289. [2020-09-24 19:12:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-24 19:12:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 313 transitions. [2020-09-24 19:12:49,296 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 313 transitions. Word has length 156 [2020-09-24 19:12:49,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:49,297 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 313 transitions. [2020-09-24 19:12:49,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:12:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 313 transitions. [2020-09-24 19:12:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 19:12:49,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:49,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:49,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:12:49,300 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:49,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1152669890, now seen corresponding path program 1 times [2020-09-24 19:12:49,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:49,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752517431] [2020-09-24 19:12:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:49,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:49,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 19:12:50,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:12:50,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 19:12:50,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 19:12:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:50,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,670 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:50,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:50,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 19:12:50,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:50,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:50,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:50,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:50,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:50,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:50,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:50,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 19:12:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:12:50,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 19:12:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:12:50,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:50,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:50,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:12:50,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:50,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:12:50,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:50,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:12:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:12:50,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:50,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:50,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 19:12:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:50,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:50,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 19:12:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:50,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:50,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:50,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:50,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:50,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:50,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752517431] [2020-09-24 19:12:50,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:50,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:12:50,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542694391] [2020-09-24 19:12:50,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:12:50,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:50,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:12:50,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:12:50,977 INFO L87 Difference]: Start difference. First operand 289 states and 313 transitions. Second operand 7 states. [2020-09-24 19:12:51,463 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:53,187 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:54,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:54,348 INFO L93 Difference]: Finished difference Result 728 states and 857 transitions. [2020-09-24 19:12:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:12:54,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-24 19:12:54,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:54,355 INFO L225 Difference]: With dead ends: 728 [2020-09-24 19:12:54,355 INFO L226 Difference]: Without dead ends: 549 [2020-09-24 19:12:54,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:12:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-09-24 19:12:54,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 422. [2020-09-24 19:12:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-24 19:12:54,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 452 transitions. [2020-09-24 19:12:54,418 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 452 transitions. Word has length 174 [2020-09-24 19:12:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:54,419 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 452 transitions. [2020-09-24 19:12:54,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:12:54,419 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 452 transitions. [2020-09-24 19:12:54,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 19:12:54,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:54,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:54,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:12:54,422 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:54,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1132790830, now seen corresponding path program 1 times [2020-09-24 19:12:54,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:54,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997632798] [2020-09-24 19:12:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 19:12:55,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-09-24 19:12:55,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:12:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:12:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 19:12:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,065 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:56,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-24 19:12:56,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:12:56,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:56,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:56,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:56,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:56,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:56,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:56,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:56,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:56,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:56,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:56,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:56,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:56,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:12:56,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 19:12:56,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:12:56,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 19:12:56,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:12:56,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:12:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:12:56,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:12:56,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:56,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:56,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:56,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:56,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:56,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 19:12:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:12:56,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 19:12:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:56,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:56,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997632798] [2020-09-24 19:12:56,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:56,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:12:56,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594620741] [2020-09-24 19:12:56,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:12:56,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:56,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:12:56,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:12:56,806 INFO L87 Difference]: Start difference. First operand 422 states and 452 transitions. Second operand 10 states. [2020-09-24 19:12:57,428 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:59,132 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:59,441 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:59,767 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:00,057 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:00,374 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:13:00,671 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:00,967 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:02,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:02,806 INFO L93 Difference]: Finished difference Result 1124 states and 1340 transitions. [2020-09-24 19:13:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 19:13:02,807 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 198 [2020-09-24 19:13:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:02,817 INFO L225 Difference]: With dead ends: 1124 [2020-09-24 19:13:02,817 INFO L226 Difference]: Without dead ends: 812 [2020-09-24 19:13:02,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-24 19:13:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-24 19:13:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 611. [2020-09-24 19:13:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-24 19:13:02,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 665 transitions. [2020-09-24 19:13:02,920 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 665 transitions. Word has length 198 [2020-09-24 19:13:02,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:02,921 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 665 transitions. [2020-09-24 19:13:02,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:13:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 665 transitions. [2020-09-24 19:13:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 19:13:02,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:02,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:02,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:13:02,925 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:02,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:02,925 INFO L82 PathProgramCache]: Analyzing trace with hash 3424835, now seen corresponding path program 1 times [2020-09-24 19:13:02,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:02,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97615361] [2020-09-24 19:13:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:03,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:03,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:03,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 19:13:03,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:13:03,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:13:03,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:03,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:03,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 19:13:03,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 19:13:03,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,264 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 19:13:04,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:04,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:04,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:13:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:04,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:13:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:04,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:04,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:13:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 19:13:04,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:13:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 19:13:04,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:13:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:13:04,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:04,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 19:13:04,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:13:04,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:13:04,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:13:04,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:04,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:13:04,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:13:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:04,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:04,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:04,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:04,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:04,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:04,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:13:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:13:04,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:13:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:13:04,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:13:04,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:04,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 19:13:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:04,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:04,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:04,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:04,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:13:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:13:05,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97615361] [2020-09-24 19:13:05,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:05,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:13:05,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393127486] [2020-09-24 19:13:05,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:13:05,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:05,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:13:05,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:05,052 INFO L87 Difference]: Start difference. First operand 611 states and 665 transitions. Second operand 11 states. [2020-09-24 19:13:05,639 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:07,383 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:07,723 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:13:08,098 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:08,412 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:13:08,701 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:09,189 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:09,479 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:09,846 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:11,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:11,724 INFO L93 Difference]: Finished difference Result 821 states and 969 transitions. [2020-09-24 19:13:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 19:13:11,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 203 [2020-09-24 19:13:11,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:11,731 INFO L225 Difference]: With dead ends: 821 [2020-09-24 19:13:11,731 INFO L226 Difference]: Without dead ends: 818 [2020-09-24 19:13:11,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-24 19:13:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-09-24 19:13:11,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 614. [2020-09-24 19:13:11,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-09-24 19:13:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 668 transitions. [2020-09-24 19:13:11,808 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 668 transitions. Word has length 203 [2020-09-24 19:13:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:11,809 INFO L479 AbstractCegarLoop]: Abstraction has 614 states and 668 transitions. [2020-09-24 19:13:11,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:13:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 668 transitions. [2020-09-24 19:13:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 19:13:11,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:11,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:11,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:13:11,813 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:11,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1652858707, now seen corresponding path program 1 times [2020-09-24 19:13:11,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:11,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670674830] [2020-09-24 19:13:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:12,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:12,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:12,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 19:13:12,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:12,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-24 19:13:12,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 19:13:12,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:12,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,138 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:13,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:13,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 19:13:13,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:13,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:13,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:13,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:13,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:13,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:13,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:13,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:13,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:13:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:13,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:13,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:13:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:13,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:13,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:13:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:13:13,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:13:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:13:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:13,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:13:13,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:13:13,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:13:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:13:13,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:13:13,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:13:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:13,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:13:13,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:13:13,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:13,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:13,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:13:13,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:13:13,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:13:13,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:13,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:13,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:13,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:13,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:13:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:13,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:13,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:13:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:13,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:13,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:13,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 19:13:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:14,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:14,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:13:14,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670674830] [2020-09-24 19:13:14,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:14,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:13:14,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83284710] [2020-09-24 19:13:14,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:13:14,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:14,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:13:14,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:14,098 INFO L87 Difference]: Start difference. First operand 614 states and 668 transitions. Second operand 11 states. [2020-09-24 19:13:15,361 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:15,646 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:15,939 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:13:16,231 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:16,541 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:16,824 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:18,746 INFO L93 Difference]: Finished difference Result 1336 states and 1575 transitions. [2020-09-24 19:13:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:13:18,747 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 226 [2020-09-24 19:13:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:18,752 INFO L225 Difference]: With dead ends: 1336 [2020-09-24 19:13:18,752 INFO L226 Difference]: Without dead ends: 832 [2020-09-24 19:13:18,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:13:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-09-24 19:13:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 630. [2020-09-24 19:13:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-09-24 19:13:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 684 transitions. [2020-09-24 19:13:18,831 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 684 transitions. Word has length 226 [2020-09-24 19:13:18,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:18,832 INFO L479 AbstractCegarLoop]: Abstraction has 630 states and 684 transitions. [2020-09-24 19:13:18,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:13:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 684 transitions. [2020-09-24 19:13:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 19:13:18,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:18,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:18,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:13:18,836 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:18,836 INFO L82 PathProgramCache]: Analyzing trace with hash 878160627, now seen corresponding path program 1 times [2020-09-24 19:13:18,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:18,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23842945] [2020-09-24 19:13:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:19,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:19,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:19,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 19:13:19,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-24 19:13:19,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 19:13:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:19,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:20,250 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:20,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:20,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 19:13:20,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:20,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:20,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:20,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:20,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:20,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:20,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:20,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:13:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:20,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:20,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:13:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:20,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:20,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:13:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:13:20,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 19:13:20,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:13:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:13:20,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 19:13:20,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:20,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:13:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:20,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:13:20,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 19:13:20,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:13:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:20,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:20,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 19:13:20,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:13:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:20,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:20,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:13:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:13:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:13:20,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:13:20,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:13:20,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:20,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:20,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:20,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:20,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:13:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:20,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:20,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:13:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:20,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:20,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:20,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:20,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 19:13:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:20,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:20,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:20,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:20,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:20,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:20,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:20,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:20,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:20,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:20,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:13:20,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23842945] [2020-09-24 19:13:20,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:20,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:13:20,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578744225] [2020-09-24 19:13:20,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:13:20,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:20,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:13:20,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:13:20,973 INFO L87 Difference]: Start difference. First operand 630 states and 684 transitions. Second operand 10 states. [2020-09-24 19:13:22,101 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:22,401 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:22,618 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:22,881 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:23,156 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:24,907 INFO L93 Difference]: Finished difference Result 1199 states and 1386 transitions. [2020-09-24 19:13:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:13:24,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 226 [2020-09-24 19:13:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:24,913 INFO L225 Difference]: With dead ends: 1199 [2020-09-24 19:13:24,913 INFO L226 Difference]: Without dead ends: 679 [2020-09-24 19:13:24,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:13:24,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-24 19:13:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 530. [2020-09-24 19:13:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-24 19:13:24,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 565 transitions. [2020-09-24 19:13:24,978 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 565 transitions. Word has length 226 [2020-09-24 19:13:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:24,978 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 565 transitions. [2020-09-24 19:13:24,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:13:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 565 transitions. [2020-09-24 19:13:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 19:13:24,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:24,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:24,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:13:24,981 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:24,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1943587734, now seen corresponding path program 1 times [2020-09-24 19:13:24,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:24,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344410725] [2020-09-24 19:13:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:25,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking...