/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:15:36,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:15:36,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:15:36,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:15:36,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:15:36,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:15:36,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:15:36,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:15:36,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:15:36,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:15:36,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:15:36,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:15:36,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:15:36,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:15:36,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:15:36,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:15:36,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:15:36,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:15:36,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:15:36,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:15:36,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:15:36,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:15:36,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:15:37,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:15:37,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:15:37,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:15:37,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:15:37,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:15:37,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:15:37,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:15:37,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:15:37,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:15:37,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:15:37,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:15:37,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:15:37,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:15:37,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:15:37,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:15:37,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:15:37,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:15:37,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:15:37,016 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 [2020-09-25 13:15:37,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:15:37,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:15:37,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:15:37,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:15:37,060 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:15:37,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:15:37,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:15:37,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:15:37,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:15:37,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:15:37,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:15:37,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:15:37,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:15:37,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:15:37,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:15:37,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:15:37,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:15:37,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:15:37,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:15:37,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:15:37,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:15:37,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:15:37,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:15:37,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:15:37,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:15:37,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:15:37,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:15:37,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:15:37,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:15:37,071 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:15:37,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:15:37,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:15:37,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:15:37,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:15:37,612 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:15:37,613 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 13:15:37,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25772e279/fcf4e50a09d443239092fa55095598f7/FLAGb07393773 [2020-09-25 13:15:38,294 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:15:38,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2020-09-25 13:15:38,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25772e279/fcf4e50a09d443239092fa55095598f7/FLAGb07393773 [2020-09-25 13:15:38,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25772e279/fcf4e50a09d443239092fa55095598f7 [2020-09-25 13:15:38,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:15:38,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:15:38,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:15:38,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:15:38,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:15:38,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:15:38" (1/1) ... [2020-09-25 13:15:38,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:38, skipping insertion in model container [2020-09-25 13:15:38,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:15:38" (1/1) ... [2020-09-25 13:15:38,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:15:38,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:15:39,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:15:39,210 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:15:39,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:15:39,383 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:15:39,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39 WrapperNode [2020-09-25 13:15:39,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:15:39,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:15:39,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:15:39,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:15:39,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (1/1) ... [2020-09-25 13:15:39,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:15:39,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:15:39,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:15:39,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:15:39,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (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 [2020-09-25 13:15:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:15:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:15:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:15:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:15:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:15:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:15:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:15:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:15:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:15:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:15:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:15:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:15:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:15:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:15:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:15:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:15:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:15:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:15:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:15:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:15:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:15:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:15:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:15:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:15:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:15:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:15:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:15:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:15:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:15:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:15:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:15:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:15:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:15:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:15:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:15:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:15:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:15:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:15:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:15:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:15:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:15:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:15:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:15:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:15:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:15:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:15:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:15:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:15:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:15:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:15:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:15:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:15:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:15:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:15:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:15:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:15:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:15:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:15:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:15:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:15:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:15:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:15:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:15:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:15:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:15:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:15:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:15:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:15:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:15:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:15:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:15:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:15:40,798 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:15:40,799 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:15:40,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:15:40 BoogieIcfgContainer [2020-09-25 13:15:40,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:15:40,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:15:40,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:15:40,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:15:40,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:15:38" (1/3) ... [2020-09-25 13:15:40,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d84c628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:15:40, skipping insertion in model container [2020-09-25 13:15:40,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:39" (2/3) ... [2020-09-25 13:15:40,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d84c628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:15:40, skipping insertion in model container [2020-09-25 13:15:40,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:15:40" (3/3) ... [2020-09-25 13:15:40,816 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2020-09-25 13:15:40,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:15:40,840 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:15:40,864 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:15:40,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:15:40,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:15:40,900 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:15:40,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:15:40,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:15:40,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:15:40,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:15:40,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:15:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 13:15:40,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:15:40,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:40,956 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] [2020-09-25 13:15:40,957 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:40,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:40,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times [2020-09-25 13:15:40,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:40,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855767219] [2020-09-25 13:15:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:41,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:41,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:43,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:46,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:46,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:15:46,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 13:15:46,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:46,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:15:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:15:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 13:15:46,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 13:15:47,060 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:47,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:47,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 13:15:47,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:15:47,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:47,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:47,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:47,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:47,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:47,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:47,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:47,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:47,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:47,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:47,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:47,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:15:47,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:47,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:47,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:47,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:47,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:47,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:15:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:47,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:47,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:47,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:47,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:15:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:47,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:47,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:47,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:47,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:47,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:47,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:47,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:47,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855767219] [2020-09-25 13:15:47,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:47,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:15:47,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924299071] [2020-09-25 13:15:47,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:15:47,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:47,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:15:47,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:15:47,724 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-09-25 13:15:48,446 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:50,950 INFO L93 Difference]: Finished difference Result 705 states and 852 transitions. [2020-09-25 13:15:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:15:50,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:15:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:50,976 INFO L225 Difference]: With dead ends: 705 [2020-09-25 13:15:50,976 INFO L226 Difference]: Without dead ends: 494 [2020-09-25 13:15:50,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:15:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-25 13:15:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 422. [2020-09-25 13:15:51,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-25 13:15:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 471 transitions. [2020-09-25 13:15:51,159 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 471 transitions. Word has length 142 [2020-09-25 13:15:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:51,160 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 471 transitions. [2020-09-25 13:15:51,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:15:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 471 transitions. [2020-09-25 13:15:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:15:51,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:51,166 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] [2020-09-25 13:15:51,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:15:51,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:51,168 INFO L82 PathProgramCache]: Analyzing trace with hash -479844707, now seen corresponding path program 1 times [2020-09-25 13:15:51,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:51,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390177482] [2020-09-25 13:15:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:51,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:51,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:51,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:51,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:15:56,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:56,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 13:15:56,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:15:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:15:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:15:56,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,578 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:56,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:56,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 13:15:56,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:15:56,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:56,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:56,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:56,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:56,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:56,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:56,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:57,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:57,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:57,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:15:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:57,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:15:57,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:15:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:57,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:57,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:15:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:57,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:57,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:57,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:15:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:57,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:57,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:15:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:57,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:57,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:57,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:57,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:57,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390177482] [2020-09-25 13:15:57,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:57,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:15:57,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147838448] [2020-09-25 13:15:57,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:15:57,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:57,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:15:57,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:15:57,118 INFO L87 Difference]: Start difference. First operand 422 states and 471 transitions. Second operand 6 states. [2020-09-25 13:15:57,643 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:59,309 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:16:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:16:00,812 INFO L93 Difference]: Finished difference Result 1134 states and 1404 transitions. [2020-09-25 13:16:00,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:16:00,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 13:16:00,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:16:00,822 INFO L225 Difference]: With dead ends: 1134 [2020-09-25 13:16:00,823 INFO L226 Difference]: Without dead ends: 822 [2020-09-25 13:16:00,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:16:00,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2020-09-25 13:16:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 677. [2020-09-25 13:16:00,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-09-25 13:16:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 773 transitions. [2020-09-25 13:16:00,946 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 773 transitions. Word has length 156 [2020-09-25 13:16:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:16:00,947 INFO L479 AbstractCegarLoop]: Abstraction has 677 states and 773 transitions. [2020-09-25 13:16:00,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:16:00,947 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 773 transitions. [2020-09-25 13:16:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:16:00,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:16:00,951 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] [2020-09-25 13:16:00,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:16:00,952 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:16:00,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:16:00,952 INFO L82 PathProgramCache]: Analyzing trace with hash 870315564, now seen corresponding path program 1 times [2020-09-25 13:16:00,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:16:00,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886347425] [2020-09-25 13:16:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:16:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:01,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:02,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:04,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 13:16:06,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:16:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 13:16:06,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:16:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:16:06,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 13:16:06,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,423 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:16:06,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:16:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:16:06,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 13:16:06,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:16:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:16:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:06,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:06,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:06,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:16:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:06,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:06,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:16:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:06,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:16:06,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:16:06,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:16:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:06,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:06,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:06,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:16:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:16:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:16:06,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:16:06,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:16:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:16:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:06,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:16:06,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:16:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:16:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:16:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:06,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:06,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:16:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:16:06,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886347425] [2020-09-25 13:16:06,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:16:06,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:16:06,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196841027] [2020-09-25 13:16:06,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:16:06,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:16:06,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:16:06,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:16:06,918 INFO L87 Difference]: Start difference. First operand 677 states and 773 transitions. Second operand 10 states. [2020-09-25 13:16:07,476 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:16:08,749 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:16:09,062 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:16:09,383 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:16:09,711 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:16:10,019 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:16:11,103 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:16:11,420 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:16:11,856 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:16:13,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:16:13,363 INFO L93 Difference]: Finished difference Result 1718 states and 2169 transitions. [2020-09-25 13:16:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:16:13,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 13:16:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:16:13,374 INFO L225 Difference]: With dead ends: 1718 [2020-09-25 13:16:13,374 INFO L226 Difference]: Without dead ends: 1151 [2020-09-25 13:16:13,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:16:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2020-09-25 13:16:13,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1051. [2020-09-25 13:16:13,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-09-25 13:16:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1273 transitions. [2020-09-25 13:16:13,549 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1273 transitions. Word has length 161 [2020-09-25 13:16:13,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:16:13,551 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1273 transitions. [2020-09-25 13:16:13,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:16:13,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1273 transitions. [2020-09-25 13:16:13,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-25 13:16:13,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:16:13,559 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:16:13,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:16:13,559 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:16:13,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:16:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1037603338, now seen corresponding path program 1 times [2020-09-25 13:16:13,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:16:13,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782975517] [2020-09-25 13:16:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:16:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:13,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:13,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:14,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:14,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:15,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:18,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:18,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-09-25 13:16:18,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:16:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 13:16:18,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:18,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-25 13:16:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 13:16:18,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,033 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:16:19,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:16:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:16:19,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 13:16:19,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:16:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:19,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:19,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:16:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:19,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:19,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:16:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:19,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:16:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:16:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:16:19,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:19,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:16:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:16:19,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:16:19,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:16:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:16:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:16:19,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:16:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:16:19,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:16:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:16:19,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:16:19,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:19,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:19,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:19,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 13:16:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:16:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:16:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:16:19,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:16:19,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:16:19,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:16:19,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:19,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:19,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:19,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:19,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:16:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 13:16:19,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:16:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 13:16:19,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:16:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 13:16:19,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:16:19,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:16:19,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 13:16:19,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 13:16:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:19,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:19,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:16:19,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:16:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 13:16:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:19,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:16:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:16:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:16:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:20,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:16:20,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 13:16:20,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:16:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:16:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:20,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:16:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:16:20,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:16:20,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:20,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:20,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:20,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:16:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:16:20,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:16:20,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:20,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:16:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:20,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:20,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:16:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:16:20,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:16:20,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:16:20,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:20,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:16:20,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:20,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:16:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:20,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:20,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:16:20,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:20,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:16:20,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-09-25 13:16:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:16:20,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:16:20,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:20,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:16:20,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:20,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:20,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-09-25 13:16:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:20,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:20,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:16:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:20,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 13:16:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:16:20,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:16:20,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:16:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:16:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:16:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:16:20,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:16:20,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:16:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:16:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:16:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:16:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:16:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-09-25 13:16:20,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782975517] [2020-09-25 13:16:20,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:16:20,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 13:16:20,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88964394] [2020-09-25 13:16:20,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 13:16:20,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:16:20,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 13:16:20,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:16:20,434 INFO L87 Difference]: Start difference. First operand 1051 states and 1273 transitions. Second operand 14 states. [2020-09-25 13:16:20,983 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:16:22,198 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:16:22,564 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:16:22,842 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:16:23,177 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:16:23,520 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:16:23,911 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:16:24,219 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 192