/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:37:51,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:37:51,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:37:51,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:37:51,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:37:51,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:37:51,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:37:51,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:37:51,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:37:51,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:37:51,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:37:51,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:37:51,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:37:51,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:37:51,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:37:51,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:37:51,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:37:51,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:37:51,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:37:51,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:37:51,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:37:51,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:37:51,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:37:51,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:37:51,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:37:51,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:37:51,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:37:51,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:37:51,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:37:51,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:37:51,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:37:51,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:37:51,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:37:51,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:37:51,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:37:51,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:37:51,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:37:51,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:37:51,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:37:51,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:37:51,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:37:51,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:37:51,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:37:51,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:37:51,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:37:51,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:37:51,774 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:37:51,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:37:51,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:37:51,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:37:51,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:37:51,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:37:51,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:37:51,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:37:51,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:37:51,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:37:51,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:37:51,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:37:51,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:37:51,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:37:51,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:37:51,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:37:51,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:37:51,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:37:51,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:37:51,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:37:51,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:37:51,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:37:51,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:37:51,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:37:51,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:37:51,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:37:52,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:37:52,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:37:52,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:37:52,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:37:52,286 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:37:52,287 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c [2020-09-25 07:37:52,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c97b58787/89c5f7be893142e9b3251dc95cb14f74/FLAGb465fe38b [2020-09-25 07:37:52,970 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:37:52,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c [2020-09-25 07:37:52,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c97b58787/89c5f7be893142e9b3251dc95cb14f74/FLAGb465fe38b [2020-09-25 07:37:53,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c97b58787/89c5f7be893142e9b3251dc95cb14f74 [2020-09-25 07:37:53,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:37:53,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:37:53,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:37:53,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:37:53,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:37:53,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:53,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53, skipping insertion in model container [2020-09-25 07:37:53,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:53,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:37:53,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:37:53,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:37:53,742 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:37:53,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:37:53,965 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:37:53,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53 WrapperNode [2020-09-25 07:37:53,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:37:53,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:37:53,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:37:53,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:37:53,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:53,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:54,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:54,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:54,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:54,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:54,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... [2020-09-25 07:37:54,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:37:54,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:37:54,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:37:54,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:37:54,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:37:54,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:37:54,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:37:54,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:37:54,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:37:54,164 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:37:54,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:37:54,164 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:37:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:37:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:37:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:37:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:37:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:37:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:37:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:37:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:37:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:37:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:37:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:37:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:37:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:37:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:37:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:37:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:37:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:37:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:37:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:37:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:37:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:37:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:37:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:37:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:37:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:37:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:37:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:37:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:37:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:37:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:37:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:37:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:37:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:37:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:37:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:37:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:37:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:37:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:37:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:37:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:37:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:37:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:37:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:37:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:37:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:37:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:37:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:37:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:37:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:37:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:37:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:37:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:37:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:37:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:37:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:37:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:37:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:37:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:37:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:37:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:37:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:37:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:37:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:37:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:37:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:37:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:37:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:37:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:37:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:37:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:37:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:37:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:37:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:37:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:37:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:37:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:37:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:37:55,345 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:37:55,345 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:37:55,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:37:55 BoogieIcfgContainer [2020-09-25 07:37:55,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:37:55,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:37:55,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:37:55,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:37:55,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:37:53" (1/3) ... [2020-09-25 07:37:55,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649e76ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:37:55, skipping insertion in model container [2020-09-25 07:37:55,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:53" (2/3) ... [2020-09-25 07:37:55,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649e76ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:37:55, skipping insertion in model container [2020-09-25 07:37:55,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:37:55" (3/3) ... [2020-09-25 07:37:55,364 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product07.cil.c [2020-09-25 07:37:55,375 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:37:55,387 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:37:55,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:37:55,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:37:55,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:37:55,439 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:37:55,440 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:37:55,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:37:55,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:37:55,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:37:55,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:37:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-25 07:37:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:37:55,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:55,486 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] [2020-09-25 07:37:55,486 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:55,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1976850470, now seen corresponding path program 1 times [2020-09-25 07:37:55,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:55,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977383211] [2020-09-25 07:37:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:56,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:56,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:57,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:57,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:00,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:38:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:38:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:38:00,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:00,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:00,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:00,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:38:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:38:01,528 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:01,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:01,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 07:38:01,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:01,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:01,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:01,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:01,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:01,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:01,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:01,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:01,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:01,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:01,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:38:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:01,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:01,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:38:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:01,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:01,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:38:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:01,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:01,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:38:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:01,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:01,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:01,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:01,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:01,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:01,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:38:01,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977383211] [2020-09-25 07:38:01,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:01,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:38:01,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896123897] [2020-09-25 07:38:01,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:38:01,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:01,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:38:01,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:38:01,930 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 4 states. [2020-09-25 07:38:03,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:03,365 INFO L93 Difference]: Finished difference Result 434 states and 513 transitions. [2020-09-25 07:38:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:38:03,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:38:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:03,407 INFO L225 Difference]: With dead ends: 434 [2020-09-25 07:38:03,407 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:38:03,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:38:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:38:03,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2020-09-25 07:38:03,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 07:38:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 257 transitions. [2020-09-25 07:38:03,588 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 257 transitions. Word has length 160 [2020-09-25 07:38:03,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:03,592 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 257 transitions. [2020-09-25 07:38:03,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:38:03,592 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 257 transitions. [2020-09-25 07:38:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:38:03,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:03,605 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] [2020-09-25 07:38:03,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:38:03,606 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:03,607 INFO L82 PathProgramCache]: Analyzing trace with hash 150247797, now seen corresponding path program 1 times [2020-09-25 07:38:03,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:03,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366574476] [2020-09-25 07:38:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:05,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:06,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:07,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:08,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:08,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:38:08,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:38:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 07:38:08,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:08,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:08,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:08,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:38:08,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:38:08,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,008 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:09,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 07:38:09,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:09,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:09,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:09,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:09,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:09,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:09,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:09,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:09,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:09,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:38:09,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:38:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:09,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:09,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:38:09,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:09,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:09,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:38:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:09,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:09,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:38:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:09,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:09,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:09,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:09,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:09,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:09,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:09,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:09,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:38:09,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366574476] [2020-09-25 07:38:09,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:09,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:38:09,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584667286] [2020-09-25 07:38:09,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:38:09,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:09,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:38:09,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:38:09,290 INFO L87 Difference]: Start difference. First operand 237 states and 257 transitions. Second operand 5 states. [2020-09-25 07:38:09,968 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:10,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:10,693 INFO L93 Difference]: Finished difference Result 357 states and 401 transitions. [2020-09-25 07:38:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:38:10,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:38:10,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:10,699 INFO L225 Difference]: With dead ends: 357 [2020-09-25 07:38:10,700 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 07:38:10,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:38:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 07:38:10,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 227. [2020-09-25 07:38:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 07:38:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2020-09-25 07:38:10,757 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 161 [2020-09-25 07:38:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:10,757 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2020-09-25 07:38:10,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:38:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2020-09-25 07:38:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 07:38:10,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:10,760 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] [2020-09-25 07:38:10,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:38:10,761 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:10,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1684061971, now seen corresponding path program 1 times [2020-09-25 07:38:10,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:10,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313925732] [2020-09-25 07:38:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:11,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:11,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:14,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:38:15,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:38:15,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:38:15,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:38:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 07:38:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 07:38:15,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,308 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:16,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:16,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 07:38:16,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:38:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:16,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:16,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:38:16,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:16,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:16,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:38:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:16,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:38:16,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:16,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:16,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:16,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:38:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:16,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:16,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:16,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:38:16,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:38:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:16,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:16,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:38:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:16,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:16,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:16,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:38:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:16,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:16,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:16,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:38:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:16,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:16,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:16,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:16,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:16,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:16,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:38:16,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313925732] [2020-09-25 07:38:16,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:16,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:38:16,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009055784] [2020-09-25 07:38:16,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:38:16,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:16,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:38:16,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:38:16,817 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand 5 states. [2020-09-25 07:38:17,320 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:18,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:18,690 INFO L93 Difference]: Finished difference Result 501 states and 572 transitions. [2020-09-25 07:38:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:38:18,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 07:38:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:18,697 INFO L225 Difference]: With dead ends: 501 [2020-09-25 07:38:18,697 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 07:38:18,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:38:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 07:38:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 333. [2020-09-25 07:38:18,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-25 07:38:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 368 transitions. [2020-09-25 07:38:18,757 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 368 transitions. Word has length 170 [2020-09-25 07:38:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:18,757 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 368 transitions. [2020-09-25 07:38:18,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:38:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 368 transitions. [2020-09-25 07:38:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 07:38:18,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:18,760 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] [2020-09-25 07:38:18,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:38:18,761 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:18,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:18,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1188214926, now seen corresponding path program 1 times [2020-09-25 07:38:18,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:18,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291226163] [2020-09-25 07:38:18,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:19,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:19,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:23,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 07:38:23,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:38:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 07:38:23,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:23,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:38:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 07:38:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:38:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,172 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:24,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 07:38:24,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:38:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:24,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:38:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:24,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:38:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:24,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:38:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:24,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:38:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:24,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:38:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:38:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:24,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:38:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:38:24,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:38:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:38:24,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:38:24,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:38:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:24,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:24,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:38:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:38:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:24,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:38:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:24,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:24,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:24,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:24,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:38:24,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:24,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:38:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:38:24,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291226163] [2020-09-25 07:38:24,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:24,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:38:24,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99810323] [2020-09-25 07:38:24,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:38:24,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:38:24,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:38:24,557 INFO L87 Difference]: Start difference. First operand 333 states and 368 transitions. Second operand 10 states. [2020-09-25 07:38:25,285 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:26,149 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:26,460 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:38:27,240 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:38:27,588 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 07:38:27,910 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:38:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:27,961 INFO L93 Difference]: Finished difference Result 534 states and 624 transitions. [2020-09-25 07:38:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:38:27,962 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 178 [2020-09-25 07:38:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:27,963 INFO L225 Difference]: With dead ends: 534 [2020-09-25 07:38:27,963 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:38:27,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:38:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:38:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:38:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:38:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:38:27,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-25 07:38:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:27,968 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:38:27,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:38:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:38:27,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:38:27,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:38:27,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:38:28,178 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:28,345 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:28,486 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 9 [2020-09-25 07:38:28,660 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:28,773 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 9 [2020-09-25 07:38:28,938 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:29,117 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:29,278 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:29,445 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:29,602 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:29,765 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:29,924 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:30,079 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:30,238 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:30,353 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 07:38:30,497 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:30,652 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:30,814 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:30,973 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:31,132 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:31,286 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:31,443 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:31,596 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:31,755 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:31,910 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:32,069 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:32,228 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:32,381 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:32,533 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:32,691 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:32,849 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:33,007 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:33,178 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:33,350 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:33,503 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:33,667 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:33,821 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:33,979 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:34,133 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:34,290 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:34,461 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:34,726 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-25 07:38:34,891 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:35,050 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:35,209 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:35,373 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:35,531 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:35,683 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:35,789 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 07:38:35,947 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:36,105 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:36,291 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:36,448 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:36,606 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:36,760 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:37,149 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 9 [2020-09-25 07:38:37,413 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:38:37,663 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:38:37,880 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:38:38,117 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:38:38,319 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:38:38,550 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:38:38,845 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:39,286 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 07:38:39,492 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:38:39,736 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 07:38:40,142 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 07:38:40,556 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 9 [2020-09-25 07:38:40,954 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 07:38:41,359 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 07:38:41,613 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:38:41,897 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:38:42,120 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 14 [2020-09-25 07:38:42,354 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 07:38:42,600 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25