/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:27:24,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:27:24,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:27:24,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:27:24,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:27:24,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:27:24,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:27:24,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:27:24,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:27:24,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:27:24,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:27:24,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:27:24,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:27:24,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:27:24,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:27:24,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:27:24,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:27:24,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:27:24,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:27:24,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:27:24,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:27:24,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:27:24,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:27:24,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:27:24,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:27:24,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:27:24,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:27:24,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:27:24,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:27:24,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:27:24,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:27:24,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:27:24,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:27:24,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:27:24,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:27:24,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:27:24,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:27:24,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:27:24,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:27:24,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:27:24,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:27:24,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:27:24,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:27:24,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:27:24,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:27:24,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:27:24,915 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:27:24,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:27:24,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:27:24,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:27:24,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:27:24,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:27:24,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:27:24,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:27:24,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:27:24,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:27:24,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:27:24,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:27:24,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:27:24,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:27:24,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:27:24,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:27:24,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:27:24,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:27:24,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:27:24,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:27:24,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:27:24,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:27:24,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:27:24,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:27:24,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:27:24,920 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:27:25,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:27:25,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:27:25,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:27:25,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:27:25,444 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:27:25,445 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-24 21:27:25,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcab772a9/91e7f2f5a6394a559d464928ba328ac7/FLAG1d3e84a94 [2020-09-24 21:27:26,141 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:27:26,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-24 21:27:26,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcab772a9/91e7f2f5a6394a559d464928ba328ac7/FLAG1d3e84a94 [2020-09-24 21:27:26,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcab772a9/91e7f2f5a6394a559d464928ba328ac7 [2020-09-24 21:27:26,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:27:26,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:27:26,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:27:26,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:27:26,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:27:26,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:27:26" (1/1) ... [2020-09-24 21:27:26,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:26, skipping insertion in model container [2020-09-24 21:27:26,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:27:26" (1/1) ... [2020-09-24 21:27:26,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:27:26,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:27:26,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:27:26,941 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:27:27,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:27:27,173 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:27:27,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27 WrapperNode [2020-09-24 21:27:27,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:27:27,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:27:27,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:27:27,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:27:27,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... [2020-09-24 21:27:27,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:27:27,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:27:27,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:27:27,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:27:27,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:27:27,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:27:27,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:27:27,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:27:27,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:27:27,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:27:27,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:27:27,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:27:27,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:27:27,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:27:27,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:27:27,382 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:27:27,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:27:27,383 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:27:27,383 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:27:27,383 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:27:27,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:27:27,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:27:27,384 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:27:27,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:27:27,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:27:27,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:27:27,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:27:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:27:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:27:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:27:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:27:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:27:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:27:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:27:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:27:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:27:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:27:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:27:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:27:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:27:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:27:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:27:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:27:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:27:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:27:27,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:27:27,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:27:27,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:27:27,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:27:27,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:27:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:27:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:27:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:27:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:27:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:27:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:27:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:27:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:27:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:27:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:27:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:27:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:27:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:27:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:27:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:27:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:27:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:27:28,581 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:27:28,581 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:27:28,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:27:28 BoogieIcfgContainer [2020-09-24 21:27:28,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:27:28,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:27:28,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:27:28,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:27:28,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:27:26" (1/3) ... [2020-09-24 21:27:28,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca13e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:27:28, skipping insertion in model container [2020-09-24 21:27:28,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:27:27" (2/3) ... [2020-09-24 21:27:28,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca13e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:27:28, skipping insertion in model container [2020-09-24 21:27:28,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:27:28" (3/3) ... [2020-09-24 21:27:28,597 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2020-09-24 21:27:28,610 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:27:28,621 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:27:28,644 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:27:28,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:27:28,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:27:28,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:27:28,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:27:28,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:27:28,679 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:27:28,679 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:27:28,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:27:28,708 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-24 21:27:28,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 21:27:28,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:27:28,727 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:27:28,728 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:27:28,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:27:28,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1855283270, now seen corresponding path program 1 times [2020-09-24 21:27:28,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:27:28,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236418022] [2020-09-24 21:27:28,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:27:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:29,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:29,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:30,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:30,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:34,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:34,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 21:27:34,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:27:34,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-09-24 21:27:34,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:34,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:27:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:27:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 21:27:34,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 21:27:34,883 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:27:34,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:27:35,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-24 21:27:35,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:27:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:27:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:35,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:35,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:27:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:27:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:35,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:35,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:27:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:27:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:35,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:27:35,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:27:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:27:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:27:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:27:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:27:35,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:27:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:27:35,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:27:35,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:27:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:35,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:35,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:35,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:27:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:35,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:35,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:27:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:27:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:35,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:35,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:35,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:27:35,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:27:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:27:35,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:27:35,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236418022] [2020-09-24 21:27:35,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:27:35,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:27:35,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337307609] [2020-09-24 21:27:35,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:27:35,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:27:35,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:27:35,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:27:35,621 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 9 states. [2020-09-24 21:27:36,234 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:27:37,248 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 21:27:37,866 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 21:27:39,271 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 21:27:39,613 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-09-24 21:27:39,996 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:40,511 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:27:40,821 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:27:41,128 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:27:41,590 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:27:42,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:27:42,039 INFO L93 Difference]: Finished difference Result 544 states and 668 transitions. [2020-09-24 21:27:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:27:42,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 21:27:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:27:42,065 INFO L225 Difference]: With dead ends: 544 [2020-09-24 21:27:42,065 INFO L226 Difference]: Without dead ends: 377 [2020-09-24 21:27:42,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2020-09-24 21:27:42,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-24 21:27:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 331. [2020-09-24 21:27:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-24 21:27:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 376 transitions. [2020-09-24 21:27:42,219 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 376 transitions. Word has length 160 [2020-09-24 21:27:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:27:42,220 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 376 transitions. [2020-09-24 21:27:42,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:27:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 376 transitions. [2020-09-24 21:27:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 21:27:42,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:27:42,227 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:27:42,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:27:42,228 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:27:42,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:27:42,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1596626264, now seen corresponding path program 1 times [2020-09-24 21:27:42,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:27:42,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307773594] [2020-09-24 21:27:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:27:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:42,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:42,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:27:44,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:27:44,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1904 [2020-09-24 21:27:44,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 21:27:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:27:44,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,532 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:27:44,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:27:44,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 21:27:44,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:27:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:44,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:27:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:44,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:27:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:44,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:44,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:27:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:44,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:27:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:44,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:27:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:27:44,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:44,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:27:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:44,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:27:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:27:44,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:27:44,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 21:27:44,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:27:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:27:44,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:27:44,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:27:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:27:44,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:27:44,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:27:44,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:27:44,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:27:44,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:27:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:27:44,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:27:44,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:27:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:27:44,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:27:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:44,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:44,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:27:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:27:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:44,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:27:44,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:27:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:44,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:44,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:44,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:44,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:44,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:44,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:27:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:44,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:27:44,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307773594] [2020-09-24 21:27:44,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:27:44,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:27:44,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31673693] [2020-09-24 21:27:44,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:27:44,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:27:44,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:27:44,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:27:44,998 INFO L87 Difference]: Start difference. First operand 331 states and 376 transitions. Second operand 10 states. [2020-09-24 21:27:45,812 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:46,710 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:47,042 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:27:47,395 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:47,766 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:27:48,109 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:48,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:27:48,792 INFO L93 Difference]: Finished difference Result 600 states and 721 transitions. [2020-09-24 21:27:48,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:27:48,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 21:27:48,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:27:48,798 INFO L225 Difference]: With dead ends: 600 [2020-09-24 21:27:48,799 INFO L226 Difference]: Without dead ends: 384 [2020-09-24 21:27:48,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:27:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-09-24 21:27:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 317. [2020-09-24 21:27:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-24 21:27:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 348 transitions. [2020-09-24 21:27:48,849 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 348 transitions. Word has length 194 [2020-09-24 21:27:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:27:48,849 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 348 transitions. [2020-09-24 21:27:48,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:27:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 348 transitions. [2020-09-24 21:27:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 21:27:48,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:27:48,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:27:48,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:27:48,854 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:27:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:27:48,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1698458806, now seen corresponding path program 1 times [2020-09-24 21:27:48,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:27:48,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573537750] [2020-09-24 21:27:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:27:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:48,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 21:27:50,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1093 [2020-09-24 21:27:50,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:27:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 21:27:50,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:27:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,330 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:27:50,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:27:50,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 21:27:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:27:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:50,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:50,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:27:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:50,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:50,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:27:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:50,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:50,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:27:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:50,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:50,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:27:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:50,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:50,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:27:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:27:50,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:50,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:50,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:50,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:27:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:27:50,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 21:27:50,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:27:50,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:27:50,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:27:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:50,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:27:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:27:50,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:27:50,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:27:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:27:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:50,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:27:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:27:50,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:50,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:50,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:27:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:50,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:50,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:27:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 21:27:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:50,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:50,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:27:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:50,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 21:27:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:50,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:27:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:27:50,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573537750] [2020-09-24 21:27:50,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:27:50,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:27:50,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527784596] [2020-09-24 21:27:50,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:27:50,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:27:50,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:27:50,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:27:50,877 INFO L87 Difference]: Start difference. First operand 317 states and 348 transitions. Second operand 10 states. [2020-09-24 21:27:52,351 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:52,682 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:27:53,000 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:27:53,314 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:53,649 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:27:53,956 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:27:54,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:27:54,406 INFO L93 Difference]: Finished difference Result 589 states and 683 transitions. [2020-09-24 21:27:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:27:54,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-24 21:27:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:27:54,415 INFO L225 Difference]: With dead ends: 589 [2020-09-24 21:27:54,416 INFO L226 Difference]: Without dead ends: 387 [2020-09-24 21:27:54,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:27:54,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-09-24 21:27:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 325. [2020-09-24 21:27:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-09-24 21:27:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 356 transitions. [2020-09-24 21:27:54,459 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 356 transitions. Word has length 203 [2020-09-24 21:27:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:27:54,460 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 356 transitions. [2020-09-24 21:27:54,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:27:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 356 transitions. [2020-09-24 21:27:54,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 21:27:54,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:27:54,464 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:27:54,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:27:54,464 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:27:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:27:54,465 INFO L82 PathProgramCache]: Analyzing trace with hash -674408025, now seen corresponding path program 1 times [2020-09-24 21:27:54,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:27:54,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088676979] [2020-09-24 21:27:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:27:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 21:27:56,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-09-24 21:27:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:27:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:27:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 21:27:56,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,381 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:27:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:27:56,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 21:27:56,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:27:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:27:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:56,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:56,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:27:56,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:27:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:27:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:27:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:56,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:27:56,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:27:56,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:27:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:27:56,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:56,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:27:56,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:27:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:56,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:27:56,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:27:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:27:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:27:56,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:27:56,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:27:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:27:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:56,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:56,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:27:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:27:56,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:27:56,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:27:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 21:27:56,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:27:56,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:27:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:27:56,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:27:56,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:27:56,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:27:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:27:56,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:27:56,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:27:56,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:27:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:27:56,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:27:56,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:27:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:27:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:27:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 21:27:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:56,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:56,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:27:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 21:27:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:27:56,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:27:56,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:27:56,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:27:56,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:27:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:27:56,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:27:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:27:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:27:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:27:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:27:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:27:56,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088676979] [2020-09-24 21:27:56,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:27:56,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:27:56,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923020422] [2020-09-24 21:27:56,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:27:56,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:27:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:27:56,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:27:56,969 INFO L87 Difference]: Start difference. First operand 325 states and 356 transitions. Second operand 7 states. [2020-09-24 21:27:57,624 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:27:59,071 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:00,729 INFO L93 Difference]: Finished difference Result 957 states and 1173 transitions. [2020-09-24 21:28:00,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:28:00,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-24 21:28:00,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:00,738 INFO L225 Difference]: With dead ends: 957 [2020-09-24 21:28:00,738 INFO L226 Difference]: Without dead ends: 747 [2020-09-24 21:28:00,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:28:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-09-24 21:28:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 633. [2020-09-24 21:28:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-09-24 21:28:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 732 transitions. [2020-09-24 21:28:00,834 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 732 transitions. Word has length 203 [2020-09-24 21:28:00,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:00,835 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 732 transitions. [2020-09-24 21:28:00,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:28:00,836 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 732 transitions. [2020-09-24 21:28:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 21:28:00,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:00,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:00,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:28:00,843 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:00,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:00,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1071578610, now seen corresponding path program 1 times [2020-09-24 21:28:00,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:00,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685519081] [2020-09-24 21:28:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:01,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:05,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:05,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 21:28:05,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:28:05,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 21:28:05,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:28:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:28:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-09-24 21:28:05,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,359 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:06,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 21:28:06,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:28:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:06,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:06,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:06,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:06,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:06,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:06,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:28:06,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:06,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:06,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:06,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:06,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:28:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:28:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:28:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:28:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:28:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:28:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:06,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:28:06,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:28:06,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:06,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:06,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:06,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:06,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:06,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 21:28:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:28:06,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:28:06,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 21:28:06,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:28:06,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:28:06,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:06,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:06,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:28:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:28:06,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:06,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:06,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:06,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:28:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:06,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:06,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 21:28:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:06,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:28:06,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:06,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 21:28:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:06,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:06,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:06,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:06,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:28:07,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685519081] [2020-09-24 21:28:07,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:07,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 21:28:07,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315660235] [2020-09-24 21:28:07,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:28:07,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:07,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:28:07,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:28:07,095 INFO L87 Difference]: Start difference. First operand 633 states and 732 transitions. Second operand 13 states. [2020-09-24 21:28:07,695 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:08,673 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:09,563 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:09,910 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:28:10,354 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:10,697 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:28:11,050 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:28:11,396 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:11,809 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:28:12,134 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:13,891 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:14,185 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:14,516 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:15,067 INFO L93 Difference]: Finished difference Result 1815 states and 2211 transitions. [2020-09-24 21:28:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 21:28:15,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-09-24 21:28:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:15,075 INFO L225 Difference]: With dead ends: 1815 [2020-09-24 21:28:15,075 INFO L226 Difference]: Without dead ends: 1297 [2020-09-24 21:28:15,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=375, Invalid=1517, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 21:28:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2020-09-24 21:28:15,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1052. [2020-09-24 21:28:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-09-24 21:28:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1212 transitions. [2020-09-24 21:28:15,208 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1212 transitions. Word has length 208 [2020-09-24 21:28:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:15,208 INFO L479 AbstractCegarLoop]: Abstraction has 1052 states and 1212 transitions. [2020-09-24 21:28:15,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:28:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1212 transitions. [2020-09-24 21:28:15,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-09-24 21:28:15,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:15,212 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:15,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:28:15,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:15,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:15,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1422248717, now seen corresponding path program 1 times [2020-09-24 21:28:15,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:15,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998965371] [2020-09-24 21:28:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat