/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_spec2_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:19:51,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:19:51,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:19:51,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:19:51,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:19:51,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:19:51,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:19:51,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:19:51,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:19:51,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:19:51,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:19:51,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:19:51,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:19:51,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:19:51,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:19:51,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:19:51,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:19:51,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:19:51,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:19:51,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:19:51,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:19:51,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:19:51,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:19:51,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:19:51,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:19:51,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:19:51,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:19:51,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:19:51,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:19:51,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:19:51,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:19:51,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:19:51,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:19:51,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:19:51,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:19:51,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:19:51,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:19:51,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:19:51,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:19:51,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:19:51,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:19:51,830 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 06:19:51,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:19:51,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:19:51,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:19:51,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:19:51,879 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:19:51,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:19:51,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:19:51,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:19:51,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:19:51,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:19:51,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:19:51,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:19:51,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:19:51,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:19:51,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:19:51,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:19:51,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:19:51,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:19:51,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:19:51,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:19:51,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:19:51,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:19:51,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:19:51,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:19:51,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:19:51,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:19:51,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:19:51,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:19:51,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:19:51,886 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 06:19:52,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:19:52,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:19:52,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:19:52,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:19:52,371 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:19:52,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2020-09-25 06:19:52,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/876b774df/a35c8db74f4d42ed98ed95bf013a02a1/FLAG44656a64f [2020-09-25 06:19:53,052 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:19:53,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2020-09-25 06:19:53,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/876b774df/a35c8db74f4d42ed98ed95bf013a02a1/FLAG44656a64f [2020-09-25 06:19:53,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/876b774df/a35c8db74f4d42ed98ed95bf013a02a1 [2020-09-25 06:19:53,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:19:53,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:19:53,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:53,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:19:53,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:19:53,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:19:53" (1/1) ... [2020-09-25 06:19:53,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ac6c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:53, skipping insertion in model container [2020-09-25 06:19:53,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:19:53" (1/1) ... [2020-09-25 06:19:53,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:19:53,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:19:53,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:53,915 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:19:54,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:54,051 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:19:54,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54 WrapperNode [2020-09-25 06:19:54,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:54,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:19:54,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:19:54,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:19:54,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (1/1) ... [2020-09-25 06:19:54,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:19:54,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:19:54,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:19:54,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:19:54,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (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 06:19:54,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:19:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:19:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:19:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:19:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:19:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:19:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:19:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:19:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:19:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:19:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:19:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:19:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:19:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:19:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:19:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:19:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:19:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:19:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:19:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:19:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:19:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:19:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:19:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:19:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:19:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:19:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:19:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:19:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:19:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:19:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:19:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:19:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:19:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:19:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:19:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:19:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:19:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:19:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:19:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:19:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:19:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:19:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:19:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:19:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:19:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:19:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:19:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:19:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:19:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:19:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:19:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:19:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:19:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:19:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:19:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:19:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:19:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:19:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:19:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:19:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:19:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:19:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:19:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:19:55,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:19:55,461 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:19:55,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:55 BoogieIcfgContainer [2020-09-25 06:19:55,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:19:55,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:19:55,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:19:55,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:19:55,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:19:53" (1/3) ... [2020-09-25 06:19:55,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31322541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:55, skipping insertion in model container [2020-09-25 06:19:55,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:54" (2/3) ... [2020-09-25 06:19:55,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31322541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:55, skipping insertion in model container [2020-09-25 06:19:55,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:55" (3/3) ... [2020-09-25 06:19:55,483 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2020-09-25 06:19:55,494 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:19:55,509 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:19:55,532 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:19:55,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:19:55,575 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:19:55,575 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:19:55,575 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:19:55,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:19:55,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:19:55,576 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:19:55,577 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:19:55,608 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-25 06:19:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:19:55,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:55,627 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] [2020-09-25 06:19:55,628 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:55,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:55,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1661826490, now seen corresponding path program 1 times [2020-09-25 06:19:55,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:55,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498677838] [2020-09-25 06:19:55,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:56,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:56,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:58,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:59,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:20:01,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:01,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 06:20:01,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:20:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 06:20:01,506 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:01,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:01,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 06:20:01,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:01,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:01,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:01,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:01,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:01,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:01,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:01,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:01,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:01,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:01,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:20:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:01,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:01,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:20:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:01,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:01,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:01,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:01,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,825 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 06:20:01,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498677838] [2020-09-25 06:20:01,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:01,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:20:01,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969834822] [2020-09-25 06:20:01,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:20:01,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:01,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:20:01,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:01,858 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 4 states. [2020-09-25 06:20:03,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:03,278 INFO L93 Difference]: Finished difference Result 451 states and 537 transitions. [2020-09-25 06:20:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:20:03,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:20:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:03,300 INFO L225 Difference]: With dead ends: 451 [2020-09-25 06:20:03,300 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 06:20:03,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:03,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 06:20:03,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 243. [2020-09-25 06:20:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 06:20:03,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2020-09-25 06:20:03,412 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 148 [2020-09-25 06:20:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:03,413 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2020-09-25 06:20:03,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:20:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2020-09-25 06:20:03,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:20:03,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:03,419 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] [2020-09-25 06:20:03,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:20:03,420 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:03,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:03,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1881798897, now seen corresponding path program 1 times [2020-09-25 06:20:03,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:03,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685852107] [2020-09-25 06:20:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:03,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:03,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:06,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:08,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:20:08,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:20:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:20:08,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:08,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:20:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:20:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:08,818 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:08,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:08,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:08,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:08,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 06:20:08,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:08,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:08,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:08,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:08,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:08,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:08,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:08,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:08,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:08,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:08,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:08,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:08,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:08,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:08,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:08,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:08,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:08,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:08,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:08,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:08,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:08,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:08,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:08,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:08,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:08,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:08,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:08,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:08,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:09,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:09,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:20:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:09,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:09,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:20:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:09,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:09,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,065 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 06:20:09,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685852107] [2020-09-25 06:20:09,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:09,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:09,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856769840] [2020-09-25 06:20:09,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:09,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:09,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:09,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:09,070 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand 5 states. [2020-09-25 06:20:09,736 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:10,643 INFO L93 Difference]: Finished difference Result 370 states and 420 transitions. [2020-09-25 06:20:10,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:20:10,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:20:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:10,648 INFO L225 Difference]: With dead ends: 370 [2020-09-25 06:20:10,648 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 06:20:10,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:20:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 06:20:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2020-09-25 06:20:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-25 06:20:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2020-09-25 06:20:10,691 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 149 [2020-09-25 06:20:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:10,692 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2020-09-25 06:20:10,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:20:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2020-09-25 06:20:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:20:10,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:10,695 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] [2020-09-25 06:20:10,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:20:10,695 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:10,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1107918501, now seen corresponding path program 1 times [2020-09-25 06:20:10,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:10,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773478526] [2020-09-25 06:20:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:10,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:11,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:11,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:12,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:15,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:20:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:15,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:20:15,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:15,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:20:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:20:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:16,152 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:16,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:16,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:20:16,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:16,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:16,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:16,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:16,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:16,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:16,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:16,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:16,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:16,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:16,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:20:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:16,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:16,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:20:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:20:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:16,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:16,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:20:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:16,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:16,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:16,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:16,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:16,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:16,443 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 06:20:16,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773478526] [2020-09-25 06:20:16,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:16,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:20:16,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795610694] [2020-09-25 06:20:16,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:20:16,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:16,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:20:16,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:20:16,446 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 6 states. [2020-09-25 06:20:17,130 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:20:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:18,862 INFO L93 Difference]: Finished difference Result 549 states and 644 transitions. [2020-09-25 06:20:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:20:18,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:20:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:18,868 INFO L225 Difference]: With dead ends: 549 [2020-09-25 06:20:18,869 INFO L226 Difference]: Without dead ends: 431 [2020-09-25 06:20:18,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:20:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-09-25 06:20:18,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 341. [2020-09-25 06:20:18,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-25 06:20:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 376 transitions. [2020-09-25 06:20:18,935 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 376 transitions. Word has length 162 [2020-09-25 06:20:18,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:18,936 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 376 transitions. [2020-09-25 06:20:18,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:20:18,936 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 376 transitions. [2020-09-25 06:20:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:20:18,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:18,939 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] [2020-09-25 06:20:18,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:20:18,939 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:18,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1919107382, now seen corresponding path program 1 times [2020-09-25 06:20:18,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:18,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731711096] [2020-09-25 06:20:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:19,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:19,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:19,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:20,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:20:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:20:24,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:20:24,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,304 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:24,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 06:20:24,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:24,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:24,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:24,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:24,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:24,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:24,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:24,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:24,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:24,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:24,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:24,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:24,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:20:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:24,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:20:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:24,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:20:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:20:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:24,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:24,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:20:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 06:20:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:24,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:20:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:24,535 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 06:20:24,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731711096] [2020-09-25 06:20:24,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:24,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:20:24,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901266828] [2020-09-25 06:20:24,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:20:24,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:24,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:20:24,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:20:24,538 INFO L87 Difference]: Start difference. First operand 341 states and 376 transitions. Second operand 6 states. [2020-09-25 06:20:25,072 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:20:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:27,201 INFO L93 Difference]: Finished difference Result 768 states and 952 transitions. [2020-09-25 06:20:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:20:27,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 06:20:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:27,209 INFO L225 Difference]: With dead ends: 768 [2020-09-25 06:20:27,209 INFO L226 Difference]: Without dead ends: 765 [2020-09-25 06:20:27,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:20:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-09-25 06:20:27,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 570. [2020-09-25 06:20:27,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-25 06:20:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 643 transitions. [2020-09-25 06:20:27,326 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 643 transitions. Word has length 167 [2020-09-25 06:20:27,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:27,327 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 643 transitions. [2020-09-25 06:20:27,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:20:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 643 transitions. [2020-09-25 06:20:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 06:20:27,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:27,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:27,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:20:27,332 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:27,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:27,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1785218899, now seen corresponding path program 1 times [2020-09-25 06:20:27,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:27,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073851270] [2020-09-25 06:20:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:27,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:27,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:27,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:27,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:30,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:20:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:20:32,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:20:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:32,749 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:32,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:32,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 06:20:32,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:32,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:32,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:32,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:32,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:32,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:32,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:32,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:32,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:32,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:32,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:32,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:32,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:32,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:32,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:20:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:32,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:20:32,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:32,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:32,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:20:32,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:32,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:20:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:32,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:32,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:33,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:20:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:20:33,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:20:33,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:20:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:33,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:33,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:20:33,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:33,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:20:33,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:33,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:20:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:33,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:20:33,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:20:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:33,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:33,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:33,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:33,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:33,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:33,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:33,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:20:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:33,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:33,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:33,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:33,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:33,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:33,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:33,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:20:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:20:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 06:20:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:33,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:33,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:33,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:33,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:33,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:33,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:33,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:33,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:33,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 06:20:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:33,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:33,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:33,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:33,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:33,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:33,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:33,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:33,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 06:20:33,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073851270] [2020-09-25 06:20:33,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:20:33,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 06:20:33,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982467811] [2020-09-25 06:20:33,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 06:20:33,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:33,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 06:20:33,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:20:33,255 INFO L87 Difference]: Start difference. First operand 570 states and 643 transitions. Second operand 14 states. [2020-09-25 06:20:33,824 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:20:35,252 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:20:35,580 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:20:35,933 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:20:36,263 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:20:36,560 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:20:37,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:37,039 INFO L93 Difference]: Finished difference Result 804 states and 967 transitions. [2020-09-25 06:20:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:20:37,039 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 06:20:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:37,040 INFO L225 Difference]: With dead ends: 804 [2020-09-25 06:20:37,040 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:20:37,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2020-09-25 06:20:37,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:20:37,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:20:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:20:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:20:37,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2020-09-25 06:20:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:37,046 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:20:37,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 06:20:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:20:37,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:20:37,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:20:37,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:20:37,253 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:37,432 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:37,614 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:37,788 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:37,959 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:38,128 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:38,292 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:38,453 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:38,615 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:38,924 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:39,222 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:39,520 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:39,812 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-25 06:20:40,110 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-25 06:20:40,415 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:40,700 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:40,991 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:41,278 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 06:20:41,567 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-25 06:20:41,729 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:41,883 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:42,043 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:20:42,197 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:42,527 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:20:42,857 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:20:43,184 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:20:43,511 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191