/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:02:04,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:02:04,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:02:04,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:02:04,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:02:04,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:02:04,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:02:04,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:02:04,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:02:04,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:02:04,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:02:04,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:02:04,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:02:04,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:02:04,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:02:04,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:02:04,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:02:04,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:02:04,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:02:04,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:02:04,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:02:04,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:02:04,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:02:04,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:02:04,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:02:04,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:02:04,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:02:04,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:02:04,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:02:04,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:02:04,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:02:04,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:02:04,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:02:04,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:02:04,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:02:04,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:02:04,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:02:04,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:02:04,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:02:04,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:02:04,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:02:04,806 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 12:02:04,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:02:04,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:02:04,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:02:04,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:02:04,872 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:02:04,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:02:04,872 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:02:04,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:02:04,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:02:04,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:02:04,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:02:04,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:02:04,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:02:04,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:02:04,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:02:04,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:02:04,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:02:04,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:02:04,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:02:04,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:02:04,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:02:04,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:02:04,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:02:04,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:02:04,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:02:04,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:02:04,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:02:04,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:02:04,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:02:04,878 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:02:05,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:02:05,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:02:05,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:02:05,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:02:05,396 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:02:05,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-25 12:02:05,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ccd25670/4a1ed3172e014343b0802d119df4c943/FLAG45f1cadf9 [2020-09-25 12:02:06,148 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:02:06,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-25 12:02:06,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ccd25670/4a1ed3172e014343b0802d119df4c943/FLAG45f1cadf9 [2020-09-25 12:02:06,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ccd25670/4a1ed3172e014343b0802d119df4c943 [2020-09-25 12:02:06,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:02:06,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:02:06,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:02:06,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:02:06,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:02:06,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:02:06" (1/1) ... [2020-09-25 12:02:06,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:06, skipping insertion in model container [2020-09-25 12:02:06,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:02:06" (1/1) ... [2020-09-25 12:02:06,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:02:06,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:02:06,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:02:06,914 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:02:07,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:02:07,094 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:02:07,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07 WrapperNode [2020-09-25 12:02:07,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:02:07,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:02:07,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:02:07,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:02:07,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (1/1) ... [2020-09-25 12:02:07,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:02:07,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:02:07,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:02:07,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:02:07,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (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 12:02:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:02:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:02:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 12:02:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:02:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:02:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:02:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:02:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:02:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:02:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:02:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:02:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:02:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:02:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:02:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:02:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:02:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:02:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:02:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:02:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:02:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 12:02:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 12:02:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:02:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:02:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:02:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:02:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:02:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:02:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:02:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:02:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:02:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:02:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:02:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:02:07,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:02:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:02:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:02:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:02:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:02:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:02:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:02:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:02:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:02:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:02:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:02:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:02:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:02:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 12:02:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:02:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:02:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:02:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:02:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:02:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:02:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:02:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:02:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:02:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:02:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:02:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:02:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:02:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:02:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:02:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:02:08,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:02:08,506 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:02:08,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:02:08 BoogieIcfgContainer [2020-09-25 12:02:08,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:02:08,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:02:08,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:02:08,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:02:08,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:02:06" (1/3) ... [2020-09-25 12:02:08,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cb0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:02:08, skipping insertion in model container [2020-09-25 12:02:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:02:07" (2/3) ... [2020-09-25 12:02:08,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cb0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:02:08, skipping insertion in model container [2020-09-25 12:02:08,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:02:08" (3/3) ... [2020-09-25 12:02:08,523 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-09-25 12:02:08,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:02:08,547 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:02:08,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:02:08,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:02:08,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:02:08,601 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:02:08,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:02:08,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:02:08,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:02:08,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:02:08,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:02:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states. [2020-09-25 12:02:08,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 12:02:08,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:02:08,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:02:08,651 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:02:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:02:08,659 INFO L82 PathProgramCache]: Analyzing trace with hash -436184323, now seen corresponding path program 1 times [2020-09-25 12:02:08,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:02:08,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907433372] [2020-09-25 12:02:08,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:02:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:09,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:09,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:11,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:14,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:14,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:14,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 12:02:14,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:02:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5111 [2020-09-25 12:02:14,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:14,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:02:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:02:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 12:02:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:02:14,703 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:02:14,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:02:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:14,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:02:15,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 12:02:15,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:15,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:02:15,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:02:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:15,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:15,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:02:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:15,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:15,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:15,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:15,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:02:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:15,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:02:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:02:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:15,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:15,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:02:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:15,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:15,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:15,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 12:02:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:15,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:02:15,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:02:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 12:02:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:15,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:15,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:15,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:15,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:15,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:15,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:15,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:02:15,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:15,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:02:15,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907433372] [2020-09-25 12:02:15,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:02:15,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:02:15,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222495964] [2020-09-25 12:02:15,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:02:15,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:02:15,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:02:15,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:02:15,345 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 9 states. [2020-09-25 12:02:16,002 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:02:17,070 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:17,760 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 12:02:18,174 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:18,598 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:02:18,941 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:02:19,880 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:02:20,242 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:02:20,755 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:02:21,926 INFO L93 Difference]: Finished difference Result 669 states and 805 transitions. [2020-09-25 12:02:21,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:02:21,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 12:02:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:02:21,952 INFO L225 Difference]: With dead ends: 669 [2020-09-25 12:02:21,952 INFO L226 Difference]: Without dead ends: 465 [2020-09-25 12:02:21,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:02:21,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-25 12:02:22,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 389. [2020-09-25 12:02:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-09-25 12:02:22,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 428 transitions. [2020-09-25 12:02:22,102 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 428 transitions. Word has length 148 [2020-09-25 12:02:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:02:22,103 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 428 transitions. [2020-09-25 12:02:22,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:02:22,104 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 428 transitions. [2020-09-25 12:02:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 12:02:22,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:02:22,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:02:22,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:02:22,111 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:02:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:02:22,111 INFO L82 PathProgramCache]: Analyzing trace with hash 586656290, now seen corresponding path program 1 times [2020-09-25 12:02:22,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:02:22,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061616403] [2020-09-25 12:02:22,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:02:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:22,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:22,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:23,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 12:02:27,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:02:27,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 12:02:27,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:02:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:02:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 12:02:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,554 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:02:27,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:02:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:02:27,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 12:02:27,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:02:27,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:02:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:27,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:27,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:27,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:02:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:27,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:27,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:27,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:02:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:27,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:02:27,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:27,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:02:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:27,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:27,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:02:27,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:02:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:27,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:27,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:27,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 12:02:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:02:27,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:02:27,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:02:27,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:02:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:02:27,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:27,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:02:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:27,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:27,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:27,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 12:02:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:27,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:27,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:27,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:27,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:27,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:02:27,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:27,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:02:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:27,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:02:28,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061616403] [2020-09-25 12:02:28,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:02:28,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 12:02:28,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009621538] [2020-09-25 12:02:28,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:02:28,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:02:28,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:02:28,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:02:28,091 INFO L87 Difference]: Start difference. First operand 389 states and 428 transitions. Second operand 11 states. [2020-09-25 12:02:28,696 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:02:30,158 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:30,506 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:02:30,926 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:31,231 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:02:31,548 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:33,460 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:02:33,782 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:34,142 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:02:34,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:02:34,619 INFO L93 Difference]: Finished difference Result 1080 states and 1364 transitions. [2020-09-25 12:02:34,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 12:02:34,620 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-25 12:02:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:02:34,630 INFO L225 Difference]: With dead ends: 1080 [2020-09-25 12:02:34,631 INFO L226 Difference]: Without dead ends: 806 [2020-09-25 12:02:34,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 12:02:34,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-09-25 12:02:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 542. [2020-09-25 12:02:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 12:02:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 611 transitions. [2020-09-25 12:02:34,730 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 611 transitions. Word has length 167 [2020-09-25 12:02:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:02:34,731 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 611 transitions. [2020-09-25 12:02:34,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:02:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 611 transitions. [2020-09-25 12:02:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 12:02:34,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:02:34,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:34,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:02:34,737 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:02:34,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:02:34,738 INFO L82 PathProgramCache]: Analyzing trace with hash 955482386, now seen corresponding path program 1 times [2020-09-25 12:02:34,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:02:34,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259304101] [2020-09-25 12:02:34,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:02:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:34,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:34,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:35,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:35,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:35,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:39,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:39,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-09-25 12:02:39,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:02:39,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 12:02:39,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:39,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 12:02:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 12:02:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,137 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:02:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:02:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:02:40,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 12:02:40,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:02:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:40,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:02:40,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:02:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:40,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:40,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:02:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:40,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:40,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:02:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:02:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:40,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:40,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:02:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:40,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:40,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 12:02:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:02:40,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:02:40,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:02:40,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:02:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:40,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:02:40,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:40,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 12:02:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 12:02:40,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:02:40,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:40,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 12:02:40,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:02:40,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:02:40,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:40,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:40,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 12:02:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 12:02:40,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:02:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 12:02:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:02:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:02:40,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:02:40,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:02:40,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 12:02:40,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:02:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:02:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:02:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:02:40,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:40,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:02:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 12:02:40,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:02:40,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 12:02:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:02:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:02:40,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:40,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:02:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:40,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 12:02:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:40,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:40,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 12:02:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:40,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:40,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:02:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-09-25 12:02:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:40,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:40,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:40,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:40,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:40,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:40,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:40,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:02:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 12:02:40,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259304101] [2020-09-25 12:02:40,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:02:40,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 12:02:40,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14744275] [2020-09-25 12:02:40,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 12:02:40,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:02:40,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 12:02:40,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:02:40,953 INFO L87 Difference]: Start difference. First operand 542 states and 611 transitions. Second operand 14 states. [2020-09-25 12:02:41,874 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:02:43,289 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:02:43,630 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:02:43,992 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 12:02:44,423 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:02:44,835 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:02:45,139 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:02:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:02:46,947 INFO L93 Difference]: Finished difference Result 1388 states and 1811 transitions. [2020-09-25 12:02:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-25 12:02:46,948 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 248 [2020-09-25 12:02:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:02:46,968 INFO L225 Difference]: With dead ends: 1388 [2020-09-25 12:02:46,968 INFO L226 Difference]: Without dead ends: 961 [2020-09-25 12:02:46,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=374, Invalid=1432, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 12:02:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-25 12:02:47,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 550. [2020-09-25 12:02:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-09-25 12:02:47,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 611 transitions. [2020-09-25 12:02:47,070 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 611 transitions. Word has length 248 [2020-09-25 12:02:47,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:02:47,071 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 611 transitions. [2020-09-25 12:02:47,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 12:02:47,072 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 611 transitions. [2020-09-25 12:02:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 12:02:47,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:02:47,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:02:47,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:02:47,076 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:02:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:02:47,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1880024600, now seen corresponding path program 1 times [2020-09-25 12:02:47,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:02:47,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820122282] [2020-09-25 12:02:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:02:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:47,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:47,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:50,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:51,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-25 12:02:52,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:02:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 12:02:52,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:02:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 12:02:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 12:02:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,448 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:02:52,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:02:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:02:52,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 12:02:52,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:02:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:52,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:02:52,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:02:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:52,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:02:52,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:02:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:52,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:52,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:02:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:02:52,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:02:52,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:02:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:52,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:52,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 12:02:52,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 12:02:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:02:52,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:02:52,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:02:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:52,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:02:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:02:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:02:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 12:02:52,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:02:52,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 12:02:52,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:02:52,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:02:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:02:52,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:02:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:02:52,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:02:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:02:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:02:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:02:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:02:52,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:02:52,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:02:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:02:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 12:02:52,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:02:52,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:02:52,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:02:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:02:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 12:02:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:02:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:02:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 12:02:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:52,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:52,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-25 12:02:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:02:52,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:02:52,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:02:52,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:02:52,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:02:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:02:52,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:02:52,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:02:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:02:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:02:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:02:52,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:02:52,999 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 12:02:52,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820122282] [2020-09-25 12:02:52,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:02:52,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 12:02:53,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924078098] [2020-09-25 12:02:53,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:02:53,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:02:53,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:02:53,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:02:53,001 INFO L87 Difference]: Start difference. First operand 550 states and 611 transitions. Second operand 12 states. [2020-09-25 12:02:53,631 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:02:54,883 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:02:55,234 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:02:55,588 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:02:55,948 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:02:56,249 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192