/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:28:26,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:28:26,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:28:26,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:28:26,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:28:26,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:28:26,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:28:26,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:28:26,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:28:26,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:28:26,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:28:26,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:28:26,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:28:26,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:28:26,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:28:26,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:28:26,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:28:26,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:28:26,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:28:26,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:28:26,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:28:26,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:28:26,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:28:26,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:28:26,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:28:26,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:28:26,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:28:26,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:28:26,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:28:26,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:28:26,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:28:26,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:28:26,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:28:26,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:28:26,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:28:26,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:28:26,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:28:26,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:28:26,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:28:26,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:28:26,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:28:26,561 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 06:28:26,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:28:26,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:28:26,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:28:26,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:28:26,590 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:28:26,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:28:26,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:28:26,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:28:26,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:28:26,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:28:26,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:28:26,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:28:26,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:28:26,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:28:26,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:28:26,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:28:26,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:28:26,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:28:26,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:28:26,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:28:26,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:28:26,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:28:26,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:28:26,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:28:26,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:28:26,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:28:26,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:28:26,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:28:26,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:28:26,595 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:28:27,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:28:27,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:28:27,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:28:27,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:28:27,165 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:28:27,166 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-25 06:28:27,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39d9f0850/ed767f61df4c4e57a932f2997a087ff8/FLAGf42937c46 [2020-09-25 06:28:27,881 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:28:27,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-25 06:28:27,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39d9f0850/ed767f61df4c4e57a932f2997a087ff8/FLAGf42937c46 [2020-09-25 06:28:28,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39d9f0850/ed767f61df4c4e57a932f2997a087ff8 [2020-09-25 06:28:28,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:28:28,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:28:28,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:28,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:28:28,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:28:28,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:28,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b65b249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28, skipping insertion in model container [2020-09-25 06:28:28,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:28,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:28:28,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:28:28,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:28,677 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:28:28,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:28,939 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:28:28,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28 WrapperNode [2020-09-25 06:28:28,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:28,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:28:28,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:28:28,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:28:28,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:28,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:28,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:28,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:29,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:29,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:29,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (1/1) ... [2020-09-25 06:28:29,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:28:29,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:28:29,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:28:29,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:28:29,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (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 06:28:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:28:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:28:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:28:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:28:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:28:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:28:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:28:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:28:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:28:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:28:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:28:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:28:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:28:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:28:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:28:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:28:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:28:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:28:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:28:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:28:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:28:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:28:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:28:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:28:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:28:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:28:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:28:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:28:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:28:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:28:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:28:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:28:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:28:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:28:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:28:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:28:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:28:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:28:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:28:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:28:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:28:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:28:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:28:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:28:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:28:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:28:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:28:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:28:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:28:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:28:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:28:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:28:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:28:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:28:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:28:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:28:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:28:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:28:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:28:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:28:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:28:30,323 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:28:30,323 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:28:30,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:30 BoogieIcfgContainer [2020-09-25 06:28:30,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:28:30,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:28:30,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:28:30,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:28:30,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:28:28" (1/3) ... [2020-09-25 06:28:30,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1057d000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:30, skipping insertion in model container [2020-09-25 06:28:30,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:28" (2/3) ... [2020-09-25 06:28:30,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1057d000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:30, skipping insertion in model container [2020-09-25 06:28:30,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:30" (3/3) ... [2020-09-25 06:28:30,341 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-25 06:28:30,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:28:30,364 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:28:30,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:28:30,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:28:30,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:28:30,416 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:28:30,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:28:30,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:28:30,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:28:30,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:28:30,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:28:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 06:28:30,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:28:30,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:30,470 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 06:28:30,470 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:30,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:30,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-25 06:28:30,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:30,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449519209] [2020-09-25 06:28:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:31,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:31,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:32,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:33,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:35,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:35,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:28:35,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:35,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 06:28:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:35,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:35,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:35,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:28:35,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:35,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:28:36,491 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:36,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:36,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 06:28:36,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:36,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:36,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:36,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:36,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:36,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:36,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:36,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:36,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:28:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:36,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:36,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:28:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:36,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:36,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:36,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:36,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:36,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:36,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:36,765 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 06:28:36,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449519209] [2020-09-25 06:28:36,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:36,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:28:36,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784607504] [2020-09-25 06:28:36,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:28:36,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:36,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:28:36,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:28:36,800 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 06:28:38,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:38,511 INFO L93 Difference]: Finished difference Result 570 states and 675 transitions. [2020-09-25 06:28:38,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:28:38,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:28:38,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:38,535 INFO L225 Difference]: With dead ends: 570 [2020-09-25 06:28:38,536 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 06:28:38,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:28:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 06:28:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-09-25 06:28:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-25 06:28:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 327 transitions. [2020-09-25 06:28:38,670 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 327 transitions. Word has length 142 [2020-09-25 06:28:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:38,671 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 327 transitions. [2020-09-25 06:28:38,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:28:38,672 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 327 transitions. [2020-09-25 06:28:38,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:28:38,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:38,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:38,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:28:38,678 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:38,678 INFO L82 PathProgramCache]: Analyzing trace with hash 277442402, now seen corresponding path program 1 times [2020-09-25 06:28:38,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:38,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12353356] [2020-09-25 06:28:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:38,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:40,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:42,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:43,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:43,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:28:43,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:28:43,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 06:28:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:43,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:28:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:28:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,090 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:44,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:44,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 06:28:44,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:44,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:44,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:44,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:44,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:44,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:44,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:44,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:44,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:44,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:28:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:44,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:44,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:44,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:44,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:44,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:44,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:44,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:44,309 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 06:28:44,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12353356] [2020-09-25 06:28:44,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:44,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:28:44,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884897509] [2020-09-25 06:28:44,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:28:44,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:44,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:28:44,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:28:44,314 INFO L87 Difference]: Start difference. First operand 299 states and 327 transitions. Second operand 4 states. [2020-09-25 06:28:44,920 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:46,377 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2020-09-25 06:28:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:28:46,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:28:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:46,386 INFO L225 Difference]: With dead ends: 483 [2020-09-25 06:28:46,386 INFO L226 Difference]: Without dead ends: 328 [2020-09-25 06:28:46,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:28:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-09-25 06:28:46,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2020-09-25 06:28:46,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-25 06:28:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 314 transitions. [2020-09-25 06:28:46,439 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 314 transitions. Word has length 143 [2020-09-25 06:28:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:46,440 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 314 transitions. [2020-09-25 06:28:46,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:28:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2020-09-25 06:28:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 06:28:46,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:46,443 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 06:28:46,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:28:46,443 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:46,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:46,444 INFO L82 PathProgramCache]: Analyzing trace with hash -863874740, now seen corresponding path program 1 times [2020-09-25 06:28:46,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:46,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282754344] [2020-09-25 06:28:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:46,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:46,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:47,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:48,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:28:51,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:51,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:28:51,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:28:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:28:51,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:51,787 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:51,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:28:51,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:51,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:51,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:51,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:51,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:51,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:51,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:51,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:51,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:51,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:51,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:51,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:51,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:28:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:51,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:51,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:28:51,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:51,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:28:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:51,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:51,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:28:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:51,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:51,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:51,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:51,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:51,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:51,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:51,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:52,017 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 06:28:52,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282754344] [2020-09-25 06:28:52,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:52,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:28:52,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365936731] [2020-09-25 06:28:52,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:28:52,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:52,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:28:52,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:28:52,021 INFO L87 Difference]: Start difference. First operand 289 states and 314 transitions. Second operand 5 states. [2020-09-25 06:28:52,526 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:28:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:53,795 INFO L93 Difference]: Finished difference Result 529 states and 608 transitions. [2020-09-25 06:28:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:28:53,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 06:28:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:53,803 INFO L225 Difference]: With dead ends: 529 [2020-09-25 06:28:53,803 INFO L226 Difference]: Without dead ends: 350 [2020-09-25 06:28:53,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:28:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-09-25 06:28:53,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 289. [2020-09-25 06:28:53,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-25 06:28:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 313 transitions. [2020-09-25 06:28:53,859 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 313 transitions. Word has length 156 [2020-09-25 06:28:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:53,859 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 313 transitions. [2020-09-25 06:28:53,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:28:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 313 transitions. [2020-09-25 06:28:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 06:28:53,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:53,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:53,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:28:53,863 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:53,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:53,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1152669890, now seen corresponding path program 1 times [2020-09-25 06:28:53,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:53,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333975009] [2020-09-25 06:28:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:53,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:54,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:54,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:54,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:58,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 06:28:58,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:28:58,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 06:28:58,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:58,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 06:28:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:28:58,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,355 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:28:59,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:28:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:28:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:28:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:28:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:28:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:59,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:28:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:28:59,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:28:59,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:59,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:28:59,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:28:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:28:59,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:28:59,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:28:59,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:28:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:28:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:28:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:28:59,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:28:59,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:28:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:28:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:28:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:28:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:28:59,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:28:59,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 06:28:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 06:28:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:59,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,834 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 06:28:59,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333975009] [2020-09-25 06:28:59,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:59,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:28:59,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172796409] [2020-09-25 06:28:59,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:28:59,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:59,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:28:59,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:28:59,839 INFO L87 Difference]: Start difference. First operand 289 states and 313 transitions. Second operand 7 states. [2020-09-25 06:29:00,581 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:29:02,577 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:29:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:03,784 INFO L93 Difference]: Finished difference Result 728 states and 857 transitions. [2020-09-25 06:29:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:29:03,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-25 06:29:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:03,791 INFO L225 Difference]: With dead ends: 728 [2020-09-25 06:29:03,792 INFO L226 Difference]: Without dead ends: 549 [2020-09-25 06:29:03,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:29:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-09-25 06:29:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 422. [2020-09-25 06:29:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-25 06:29:03,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 452 transitions. [2020-09-25 06:29:03,861 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 452 transitions. Word has length 174 [2020-09-25 06:29:03,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:03,861 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 452 transitions. [2020-09-25 06:29:03,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:29:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 452 transitions. [2020-09-25 06:29:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 06:29:03,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:29:03,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:29:03,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:29:03,865 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:29:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:29:03,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1132790830, now seen corresponding path program 1 times [2020-09-25 06:29:03,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:29:03,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49810022] [2020-09-25 06:29:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:29:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:03,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:04,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:05,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:05,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:06,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:08,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:08,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 06:29:08,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:29:08,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:29:08,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:08,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:29:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 06:29:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:29:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,280 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:29:09,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:29:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 06:29:09,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:29:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:09,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:29:09,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:29:09,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:29:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:09,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:09,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:29:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:09,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:09,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:29:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:09,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:09,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:29:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:29:09,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:09,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:29:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:29:09,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:29:09,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 06:29:09,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:29:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:29:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:29:09,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:29:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 06:29:09,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:29:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:29:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:29:09,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:29:09,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:29:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:29:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:29:09,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:29:09,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:29:09,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:29:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:29:09,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:29:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:09,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:09,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:29:09,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 06:29:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:09,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:09,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:29:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 06:29:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:09,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:09,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:29:09,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:09,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:09,928 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 06:29:09,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49810022] [2020-09-25 06:29:09,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:29:09,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:29:09,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429772689] [2020-09-25 06:29:09,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:29:09,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:29:09,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:29:09,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:29:09,932 INFO L87 Difference]: Start difference. First operand 422 states and 452 transitions. Second operand 10 states. [2020-09-25 06:29:10,509 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:29:12,153 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:29:12,524 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:12,846 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:29:13,180 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:13,488 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:29:13,953 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:29:14,253 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:29:14,598 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187