/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:38:38,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:38:38,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:38:38,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:38:38,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:38:38,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:38:38,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:38:38,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:38:38,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:38:38,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:38:38,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:38:38,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:38:38,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:38:38,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:38:38,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:38:38,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:38:38,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:38:38,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:38:38,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:38:38,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:38:38,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:38:38,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:38:38,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:38:38,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:38:38,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:38:38,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:38:38,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:38:38,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:38:38,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:38:38,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:38:38,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:38:38,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:38:38,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:38:38,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:38:38,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:38:38,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:38:38,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:38:38,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:38:38,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:38:38,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:38:38,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:38:38,861 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 08:38:38,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:38:38,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:38:38,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:38:38,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:38:38,892 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:38:38,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:38:38,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:38:38,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:38:38,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:38:38,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:38:38,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:38:38,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:38:38,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:38:38,895 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:38:38,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:38:38,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:38:38,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:38:38,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:38:38,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:38:38,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:38:38,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:38:38,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:38:38,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:38:38,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:38:38,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:38:38,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:38:38,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:38:38,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:38:38,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:38:38,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:38:39,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:38:39,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:38:39,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:38:39,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:38:39,419 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:38:39,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product26.cil.c [2020-09-25 08:38:39,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f8bee84a/e7c1c0cdc33243d6934438ec3621c544/FLAG657edd934 [2020-09-25 08:38:40,119 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:38:40,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product26.cil.c [2020-09-25 08:38:40,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f8bee84a/e7c1c0cdc33243d6934438ec3621c544/FLAG657edd934 [2020-09-25 08:38:40,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f8bee84a/e7c1c0cdc33243d6934438ec3621c544 [2020-09-25 08:38:40,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:38:40,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:38:40,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:38:40,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:38:40,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:38:40,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:40" (1/1) ... [2020-09-25 08:38:40,425 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 08:38:40, skipping insertion in model container [2020-09-25 08:38:40,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:40" (1/1) ... [2020-09-25 08:38:40,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:38:40,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:38:40,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:38:41,012 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:38:41,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:38:41,183 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:38:41,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41 WrapperNode [2020-09-25 08:38:41,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:38:41,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:38:41,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:38:41,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:38:41,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (1/1) ... [2020-09-25 08:38:41,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:38:41,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:38:41,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:38:41,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:38:41,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (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 08:38:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:38:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:38:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:38:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:38:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:38:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:38:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:38:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:38:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:38:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:38:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:38:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:38:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:38:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:38:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:38:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:38:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:38:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:38:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:38:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:38:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:38:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:38:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:38:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:38:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:38:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:38:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:38:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:38:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:38:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:38:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:38:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:38:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:38:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:38:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:38:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:38:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:38:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:38:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:38:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:38:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:38:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:38:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:38:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:38:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:38:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:38:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:38:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:38:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:38:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:38:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:38:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:38:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:38:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:38:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:38:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:38:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:38:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:38:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:38:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:38:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:38:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:38:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:38:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:38:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:38:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:38:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:38:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:38:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:38:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:38:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:38:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:38:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:38:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:38:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:38:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:38:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:38:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:38:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:38:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:38:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:38:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:38:42,671 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:38:42,672 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:38:42,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:42 BoogieIcfgContainer [2020-09-25 08:38:42,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:38:42,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:38:42,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:38:42,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:38:42,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:38:40" (1/3) ... [2020-09-25 08:38:42,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615ec399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:42, skipping insertion in model container [2020-09-25 08:38:42,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:41" (2/3) ... [2020-09-25 08:38:42,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615ec399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:42, skipping insertion in model container [2020-09-25 08:38:42,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:42" (3/3) ... [2020-09-25 08:38:42,689 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product26.cil.c [2020-09-25 08:38:42,701 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:38:42,713 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:38:42,737 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:38:42,778 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:38:42,778 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:38:42,778 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:38:42,778 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:38:42,778 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:38:42,779 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:38:42,779 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:38:42,779 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:38:42,810 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 08:38:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:38:42,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:42,830 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 08:38:42,831 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:42,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:42,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1480208105, now seen corresponding path program 1 times [2020-09-25 08:38:42,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:42,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036787971] [2020-09-25 08:38:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:43,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:45,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:46,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:48,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:38:48,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:38:48,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:48,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:38:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 08:38:48,789 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:48,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:48,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:48,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:48,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:48,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 08:38:48,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:48,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:49,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:49,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:49,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:49,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:49,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:38:49,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:49,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:49,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:49,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:49,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:49,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:49,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:38:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:49,150 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 08:38:49,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036787971] [2020-09-25 08:38:49,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:49,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:38:49,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804701090] [2020-09-25 08:38:49,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:38:49,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:49,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:38:49,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:49,197 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 4 states. [2020-09-25 08:38:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:50,871 INFO L93 Difference]: Finished difference Result 436 states and 516 transitions. [2020-09-25 08:38:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:38:50,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:38:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:50,910 INFO L225 Difference]: With dead ends: 436 [2020-09-25 08:38:50,910 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 08:38:50,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:50,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 08:38:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 237. [2020-09-25 08:38:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 08:38:51,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-25 08:38:51,070 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 148 [2020-09-25 08:38:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:51,071 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-25 08:38:51,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:38:51,071 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-25 08:38:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:38:51,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:51,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:51,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:38:51,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:51,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1840815419, now seen corresponding path program 1 times [2020-09-25 08:38:51,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:51,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573875423] [2020-09-25 08:38:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:53,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:54,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:38:56,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:38:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5141 [2020-09-25 08:38:56,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:56,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:38:56,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:38:56,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:38:56,624 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:56,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:56,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 08:38:56,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:56,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:56,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:56,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:56,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:56,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:56,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:56,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:56,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:56,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:56,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:38:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:56,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:56,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:56,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:56,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:56,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:56,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:56,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:56,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:56,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:56,905 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 08:38:56,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573875423] [2020-09-25 08:38:56,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:56,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:38:56,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538577922] [2020-09-25 08:38:56,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:38:56,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:56,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:38:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:38:56,911 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 5 states. [2020-09-25 08:38:57,706 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:58,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:58,554 INFO L93 Difference]: Finished difference Result 361 states and 407 transitions. [2020-09-25 08:38:58,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:38:58,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:38:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:58,558 INFO L225 Difference]: With dead ends: 361 [2020-09-25 08:38:58,559 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 08:38:58,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:38:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 08:38:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 227. [2020-09-25 08:38:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 08:38:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 242 transitions. [2020-09-25 08:38:58,604 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 242 transitions. Word has length 149 [2020-09-25 08:38:58,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:58,605 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 242 transitions. [2020-09-25 08:38:58,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:38:58,605 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 242 transitions. [2020-09-25 08:38:58,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 08:38:58,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:58,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:58,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:38:58,608 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:58,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:58,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1930340250, now seen corresponding path program 1 times [2020-09-25 08:38:58,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:58,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135365843] [2020-09-25 08:38:58,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:01,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:03,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:03,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:39:03,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:03,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 08:39:03,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:03,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:39:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:39:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:03,986 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:03,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:04,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 08:39:04,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:04,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:04,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:04,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:04,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:04,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:04,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:04,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:04,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:04,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:04,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:39:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:04,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:04,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:39:04,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:39:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:04,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:04,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:04,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:39:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:04,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:04,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:04,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:04,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:04,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:04,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:04,279 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 08:39:04,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135365843] [2020-09-25 08:39:04,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:04,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:39:04,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124859177] [2020-09-25 08:39:04,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:39:04,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:04,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:39:04,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:39:04,287 INFO L87 Difference]: Start difference. First operand 227 states and 242 transitions. Second operand 6 states. [2020-09-25 08:39:05,022 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:05,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:05,931 INFO L93 Difference]: Finished difference Result 408 states and 472 transitions. [2020-09-25 08:39:05,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:39:05,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 08:39:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:05,935 INFO L225 Difference]: With dead ends: 408 [2020-09-25 08:39:05,935 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 08:39:05,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:39:05,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 08:39:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 227. [2020-09-25 08:39:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 08:39:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 241 transitions. [2020-09-25 08:39:05,979 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 241 transitions. Word has length 162 [2020-09-25 08:39:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:05,980 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 241 transitions. [2020-09-25 08:39:05,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:39:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 241 transitions. [2020-09-25 08:39:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 08:39:05,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:05,988 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, 1, 1, 1] [2020-09-25 08:39:05,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:39:05,988 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:05,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1343213451, now seen corresponding path program 1 times [2020-09-25 08:39:05,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:05,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253221058] [2020-09-25 08:39:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:07,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:07,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:09,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 08:39:11,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 08:39:11,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:39:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:39:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 08:39:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:11,474 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:11,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:11,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 08:39:11,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:39:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:11,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:11,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:11,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:11,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:11,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:11,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:39:11,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:11,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:11,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:11,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:11,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:11,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:39:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:39:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:39:11,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:11,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:11,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:39:11,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:11,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:11,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:11,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:39:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:39:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:11,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:39:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:12,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:39:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:12,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:12,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:12,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:12,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:12,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:12,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:12,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:12,087 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 08:39:12,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253221058] [2020-09-25 08:39:12,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:12,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:39:12,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723610732] [2020-09-25 08:39:12,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:39:12,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:12,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:39:12,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:39:12,091 INFO L87 Difference]: Start difference. First operand 227 states and 241 transitions. Second operand 11 states. [2020-09-25 08:39:12,893 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:14,246 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:14,588 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:39:14,918 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:15,278 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:15,617 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:39:15,943 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:16,260 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:16,744 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:39:18,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:18,374 INFO L93 Difference]: Finished difference Result 640 states and 797 transitions. [2020-09-25 08:39:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 08:39:18,375 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 170 [2020-09-25 08:39:18,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:18,381 INFO L225 Difference]: With dead ends: 640 [2020-09-25 08:39:18,382 INFO L226 Difference]: Without dead ends: 528 [2020-09-25 08:39:18,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-25 08:39:18,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-09-25 08:39:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 321. [2020-09-25 08:39:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 08:39:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 347 transitions. [2020-09-25 08:39:18,459 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 347 transitions. Word has length 170 [2020-09-25 08:39:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:18,460 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 347 transitions. [2020-09-25 08:39:18,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:39:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 347 transitions. [2020-09-25 08:39:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 08:39:18,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:18,463 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:18,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:39:18,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:18,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:18,464 INFO L82 PathProgramCache]: Analyzing trace with hash -187914848, now seen corresponding path program 1 times [2020-09-25 08:39:18,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:18,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637263921] [2020-09-25 08:39:18,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:23,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:23,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 08:39:23,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:39:23,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 08:39:23,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:23,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:39:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:39:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:39:23,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:23,891 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:23,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:23,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:23,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:23,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:23,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 08:39:23,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:23,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:23,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:23,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:23,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:39:24,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:24,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:24,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:39:24,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:24,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:24,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:24,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:39:24,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:39:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:39:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:39:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:39:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:24,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:24,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:39:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:39:24,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:24,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:39:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:24,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:24,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:24,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:39:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:24,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:39:24,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:24,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 08:39:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:24,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:24,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:24,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:24,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:24,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:24,254 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 08:39:24,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637263921] [2020-09-25 08:39:24,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:24,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:39:24,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659145419] [2020-09-25 08:39:24,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:39:24,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:24,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:39:24,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:39:24,259 INFO L87 Difference]: Start difference. First operand 321 states and 347 transitions. Second operand 8 states. [2020-09-25 08:39:24,905 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190