/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:09:12,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:09:12,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:09:12,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:09:12,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:09:12,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:09:12,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:09:12,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:09:12,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:09:12,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:09:12,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:09:12,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:09:12,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:09:12,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:09:12,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:09:12,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:09:12,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:09:12,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:09:12,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:09:12,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:09:12,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:09:12,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:09:12,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:09:12,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:09:12,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:09:12,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:09:12,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:09:12,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:09:12,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:09:12,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:09:12,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:09:12,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:09:12,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:09:12,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:09:12,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:09:12,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:09:12,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:09:12,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:09:12,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:09:12,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:09:12,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:09:12,391 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 18:09:12,451 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:09:12,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:09:12,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:09:12,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:09:12,457 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:09:12,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:09:12,457 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:09:12,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:09:12,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:09:12,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:09:12,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:09:12,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:09:12,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:09:12,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:09:12,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:09:12,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:09:12,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:09:12,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:09:12,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:09:12,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:09:12,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:09:12,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:09:12,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:09:12,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:09:12,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:09:12,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:09:12,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:09:12,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:09:12,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:09:12,465 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:09:12,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:09:12,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:09:12,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:09:12,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:09:12,984 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:09:12,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 18:09:13,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/439a645d8/4ae97edf241346bc951723320b4372a2/FLAGdd88263e7 [2020-09-24 18:09:13,705 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:09:13,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 18:09:13,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/439a645d8/4ae97edf241346bc951723320b4372a2/FLAGdd88263e7 [2020-09-24 18:09:13,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/439a645d8/4ae97edf241346bc951723320b4372a2 [2020-09-24 18:09:13,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:09:13,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:09:13,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:13,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:09:13,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:09:13,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:13" (1/1) ... [2020-09-24 18:09:13,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:13, skipping insertion in model container [2020-09-24 18:09:13,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:13" (1/1) ... [2020-09-24 18:09:13,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:09:14,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:09:14,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:14,528 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:09:14,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:14,660 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:09:14,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14 WrapperNode [2020-09-24 18:09:14,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:14,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:09:14,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:09:14,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:09:14,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (1/1) ... [2020-09-24 18:09:14,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:09:14,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:09:14,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:09:14,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:09:14,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (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 18:09:14,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:09:14,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:09:14,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:14,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:09:14,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:09:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:09:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:09:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:09:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:09:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:09:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:09:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:09:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:09:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:09:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:09:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:09:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:09:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:09:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:09:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:09:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:09:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:09:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:09:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:09:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:09:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:09:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:09:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:09:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:09:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:09:14,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:09:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:09:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:09:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:09:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:09:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:09:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:09:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:09:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:09:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:09:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:09:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:09:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:09:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:09:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:09:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:09:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:09:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:09:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:09:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:09:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:09:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:09:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:09:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:09:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:09:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:09:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:09:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:09:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:09:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:09:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:09:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:09:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:09:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:09:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:09:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:09:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:09:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:09:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:09:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:09:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:09:16,216 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:09:16,216 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:09:16,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:16 BoogieIcfgContainer [2020-09-24 18:09:16,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:09:16,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:09:16,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:09:16,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:09:16,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:09:13" (1/3) ... [2020-09-24 18:09:16,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdbab0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:16, skipping insertion in model container [2020-09-24 18:09:16,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:14" (2/3) ... [2020-09-24 18:09:16,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdbab0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:16, skipping insertion in model container [2020-09-24 18:09:16,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:16" (3/3) ... [2020-09-24 18:09:16,245 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-09-24 18:09:16,257 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:09:16,273 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:09:16,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:09:16,338 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:09:16,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:09:16,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:09:16,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:09:16,339 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:09:16,339 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:09:16,339 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:09:16,339 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:09:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-09-24 18:09:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:09:16,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:16,391 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 18:09:16,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:16,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times [2020-09-24 18:09:16,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:16,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193741855] [2020-09-24 18:09:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:17,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:18,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:18,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:09:21,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 18:09:21,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:09:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 18:09:22,231 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:22,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:22,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 18:09:22,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:22,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:22,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:22,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:22,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:22,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:22,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:22,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:22,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:22,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:22,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:22,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:22,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:22,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:22,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:22,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:09:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:22,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:22,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:22,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:22,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:22,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:22,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:22,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:09:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:22,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:22,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:22,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:22,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:22,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:22,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:22,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:22,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:22,582 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 18:09:22,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193741855] [2020-09-24 18:09:22,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:22,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:09:22,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16867427] [2020-09-24 18:09:22,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:09:22,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:22,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:09:22,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:22,617 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 4 states. [2020-09-24 18:09:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:24,236 INFO L93 Difference]: Finished difference Result 574 states and 675 transitions. [2020-09-24 18:09:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:09:24,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:09:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:24,260 INFO L225 Difference]: With dead ends: 574 [2020-09-24 18:09:24,260 INFO L226 Difference]: Without dead ends: 354 [2020-09-24 18:09:24,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:24,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-24 18:09:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 305. [2020-09-24 18:09:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-24 18:09:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions. [2020-09-24 18:09:24,384 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 160 [2020-09-24 18:09:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:24,385 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 335 transitions. [2020-09-24 18:09:24,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:09:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions. [2020-09-24 18:09:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:09:24,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:24,392 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] [2020-09-24 18:09:24,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:09:24,393 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:24,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:24,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1789816380, now seen corresponding path program 1 times [2020-09-24 18:09:24,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:24,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122552115] [2020-09-24 18:09:24,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:26,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:27,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:29,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:29,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:09:29,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:29,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 18:09:29,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:09:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:09:29,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:30,017 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 18:09:30,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:30,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:30,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:30,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:30,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:30,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:30,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:30,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:30,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:30,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:09:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:30,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:09:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:30,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:30,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:30,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:30,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:30,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:09:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:30,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:30,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:30,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:30,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:30,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:30,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:30,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:30,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:30,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:30,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:30,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:30,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:30,370 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 18:09:30,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122552115] [2020-09-24 18:09:30,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:30,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:09:30,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806965033] [2020-09-24 18:09:30,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:09:30,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:30,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:09:30,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:09:30,378 INFO L87 Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 5 states. [2020-09-24 18:09:31,099 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:32,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:32,424 INFO L93 Difference]: Finished difference Result 497 states and 563 transitions. [2020-09-24 18:09:32,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:09:32,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:09:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:32,433 INFO L225 Difference]: With dead ends: 497 [2020-09-24 18:09:32,433 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 18:09:32,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:09:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 18:09:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 295. [2020-09-24 18:09:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 18:09:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-09-24 18:09:32,494 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 161 [2020-09-24 18:09:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:32,495 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-09-24 18:09:32,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:09:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-09-24 18:09:32,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 18:09:32,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:32,499 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] [2020-09-24 18:09:32,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:09:32,499 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:32,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:32,500 INFO L82 PathProgramCache]: Analyzing trace with hash 350266212, now seen corresponding path program 1 times [2020-09-24 18:09:32,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:32,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646945237] [2020-09-24 18:09:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:35,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:37,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:37,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:09:37,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:37,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 18:09:37,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 18:09:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:09:37,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:37,920 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:37,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:38,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:09:38,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:38,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:38,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:38,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:38,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:38,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:38,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:09:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:38,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:38,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:38,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:38,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 18:09:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:09:38,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,230 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 18:09:38,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646945237] [2020-09-24 18:09:38,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:38,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:09:38,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754182427] [2020-09-24 18:09:38,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:09:38,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:38,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:09:38,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:09:38,234 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 9 states. [2020-09-24 18:09:38,838 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:40,179 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 18:09:40,934 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 18:09:42,315 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:09:42,677 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 18:09:43,069 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:43,756 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:44,114 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:09:44,505 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:45,692 INFO L93 Difference]: Finished difference Result 626 states and 736 transitions. [2020-09-24 18:09:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 18:09:45,693 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 18:09:45,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:45,698 INFO L225 Difference]: With dead ends: 626 [2020-09-24 18:09:45,699 INFO L226 Difference]: Without dead ends: 446 [2020-09-24 18:09:45,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-24 18:09:45,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-24 18:09:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 398. [2020-09-24 18:09:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-24 18:09:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 442 transitions. [2020-09-24 18:09:45,760 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 442 transitions. Word has length 170 [2020-09-24 18:09:45,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:45,761 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 442 transitions. [2020-09-24 18:09:45,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:09:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 442 transitions. [2020-09-24 18:09:45,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 18:09:45,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:45,765 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, 1, 1, 1, 1, 1] [2020-09-24 18:09:45,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:09:45,765 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:45,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:45,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1477920914, now seen corresponding path program 1 times [2020-09-24 18:09:45,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:45,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916271552] [2020-09-24 18:09:45,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 18:09:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 873 [2020-09-24 18:09:46,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-24 18:09:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,014 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:47,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:47,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:09:47,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:47,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:47,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:47,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:47,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:47,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:47,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:47,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:47,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:47,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:47,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:47,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:09:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:47,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:47,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:47,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:47,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:09:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 18:09:47,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 18:09:47,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:09:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:47,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 18:09:47,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 18:09:47,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 18:09:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:47,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:09:47,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 18:09:47,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:09:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:09:47,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 18:09:47,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:09:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:47,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:09:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:09:47,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:47,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:09:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:47,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:47,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 18:09:47,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:47,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:09:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:47,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:47,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:47,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:47,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 18:09:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:47,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:47,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:47,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:47,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:47,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:47,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:47,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:47,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:47,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:47,810 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 18:09:47,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916271552] [2020-09-24 18:09:47,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:47,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:09:47,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245038105] [2020-09-24 18:09:47,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:09:47,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:47,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:09:47,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:09:47,814 INFO L87 Difference]: Start difference. First operand 398 states and 442 transitions. Second operand 10 states. [2020-09-24 18:09:50,089 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:50,446 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:09:50,766 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 18:09:51,143 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:51,512 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:09:51,837 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:52,999 INFO L93 Difference]: Finished difference Result 760 states and 888 transitions. [2020-09-24 18:09:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:09:53,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-09-24 18:09:53,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:53,005 INFO L225 Difference]: With dead ends: 760 [2020-09-24 18:09:53,006 INFO L226 Difference]: Without dead ends: 477 [2020-09-24 18:09:53,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:09:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-09-24 18:09:53,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 405. [2020-09-24 18:09:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-24 18:09:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 449 transitions. [2020-09-24 18:09:53,061 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 449 transitions. Word has length 213 [2020-09-24 18:09:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:53,062 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 449 transitions. [2020-09-24 18:09:53,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:09:53,062 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 449 transitions. [2020-09-24 18:09:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 18:09:53,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:53,065 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, 1, 1, 1, 1, 1] [2020-09-24 18:09:53,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:09:53,066 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:53,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:53,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1415592178, now seen corresponding path program 1 times [2020-09-24 18:09:53,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:53,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852757646] [2020-09-24 18:09:53,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:53,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:53,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:53,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 18:09:53,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:53,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-09-24 18:09:53,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:53,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:53,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-24 18:09:53,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:53,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,239 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:54,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:09:54,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:54,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:54,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:54,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:54,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:54,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:54,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:54,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:54,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:54,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:09:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:54,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:54,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:09:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 18:09:54,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 18:09:54,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 18:09:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 18:09:54,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 18:09:54,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 18:09:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:54,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:09:54,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 18:09:54,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:54,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:09:54,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 18:09:54,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:09:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:09:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:09:54,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:54,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:54,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:09:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:54,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 18:09:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:09:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 18:09:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,883 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 18:09:54,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852757646] [2020-09-24 18:09:54,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:54,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:09:54,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212042407] [2020-09-24 18:09:54,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:09:54,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:54,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:09:54,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:09:54,885 INFO L87 Difference]: Start difference. First operand 405 states and 449 transitions. Second operand 9 states. [2020-09-24 18:09:56,481 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:56,870 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:09:57,242 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:57,625 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:09:57,968 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:59,191 INFO L93 Difference]: Finished difference Result 773 states and 916 transitions. [2020-09-24 18:09:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:09:59,192 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 213 [2020-09-24 18:09:59,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:59,196 INFO L225 Difference]: With dead ends: 773 [2020-09-24 18:09:59,197 INFO L226 Difference]: Without dead ends: 483 [2020-09-24 18:09:59,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:09:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-09-24 18:09:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 411. [2020-09-24 18:09:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-24 18:09:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 455 transitions. [2020-09-24 18:09:59,244 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 455 transitions. Word has length 213 [2020-09-24 18:09:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:59,245 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 455 transitions. [2020-09-24 18:09:59,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:09:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 455 transitions. [2020-09-24 18:09:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 18:09:59,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:59,248 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, 1, 1, 1, 1, 1] [2020-09-24 18:09:59,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:09:59,249 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:59,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:59,249 INFO L82 PathProgramCache]: Analyzing trace with hash -739469201, now seen corresponding path program 1 times [2020-09-24 18:09:59,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:59,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693197462] [2020-09-24 18:09:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:59,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:00,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:00,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 18:10:00,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1289 [2020-09-24 18:10:00,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 18:10:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 18:10:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 18:10:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:00,889 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:00,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:00,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:01,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 18:10:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:10:01,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:01,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:10:01,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:01,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:10:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:01,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:01,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:01,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:10:01,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:01,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:01,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:10:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:10:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:01,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:01,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:10:01,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:01,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:10:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 18:10:01,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 18:10:01,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 18:10:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:10:01,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 18:10:01,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 18:10:01,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 18:10:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:10:01,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:10:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:10:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:01,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:10:01,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:01,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:10:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:01,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:01,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:10:01,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:10:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:01,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 18:10:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:01,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:01,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,516 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 18:10:01,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693197462] [2020-09-24 18:10:01,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:01,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:10:01,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350220509] [2020-09-24 18:10:01,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:10:01,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:01,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:10:01,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:10:01,518 INFO L87 Difference]: Start difference. First operand 411 states and 455 transitions. Second operand 7 states. [2020-09-24 18:10:02,143 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189