/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_spec1_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:34:31,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:34:31,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:34:31,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:34:31,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:34:31,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:34:31,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:34:31,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:34:31,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:34:31,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:34:31,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:34:31,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:34:31,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:34:31,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:34:31,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:34:31,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:34:31,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:34:31,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:34:31,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:34:31,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:34:31,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:34:31,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:34:31,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:34:31,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:34:31,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:34:31,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:34:31,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:34:31,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:34:31,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:34:31,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:34:31,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:34:31,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:34:31,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:34:31,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:34:31,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:34:31,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:34:31,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:34:31,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:34:31,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:34:31,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:34:31,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:34:31,364 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 08:34:31,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:34:31,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:34:31,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:34:31,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:34:31,390 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:34:31,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:34:31,391 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:34:31,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:34:31,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:34:31,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:34:31,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:34:31,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:34:31,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:34:31,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:34:31,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:34:31,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:34:31,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:34:31,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:34:31,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:34:31,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:34:31,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:34:31,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:34:31,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:34:31,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:34:31,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:34:31,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:34:31,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:34:31,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:34:31,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:34:31,395 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 08:34:31,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:34:31,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:34:31,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:34:31,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:34:31,881 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:34:31,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product23.cil.c [2020-09-25 08:34:31,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3a535ab2/7f9e01bf498b4fa2a098e104bace5ff4/FLAG1a4df53b3 [2020-09-25 08:34:32,603 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:34:32,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product23.cil.c [2020-09-25 08:34:32,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3a535ab2/7f9e01bf498b4fa2a098e104bace5ff4/FLAG1a4df53b3 [2020-09-25 08:34:32,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3a535ab2/7f9e01bf498b4fa2a098e104bace5ff4 [2020-09-25 08:34:32,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:34:32,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:34:32,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:34:32,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:34:32,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:34:32,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:34:32" (1/1) ... [2020-09-25 08:34:32,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c56d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:32, skipping insertion in model container [2020-09-25 08:34:32,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:34:32" (1/1) ... [2020-09-25 08:34:32,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:34:32,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:34:33,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:34:33,479 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:34:33,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:34:33,671 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:34:33,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33 WrapperNode [2020-09-25 08:34:33,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:34:33,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:34:33,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:34:33,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:34:33,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (1/1) ... [2020-09-25 08:34:33,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:34:33,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:34:33,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:34:33,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:34:33,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (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 08:34:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:34:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:34:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:34:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:34:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:34:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:34:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:34:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:34:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:34:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:34:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:34:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:34:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:34:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:34:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:34:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:34:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:34:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:34:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:34:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 08:34:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:34:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:34:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:34:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:34:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:34:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:34:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:34:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:34:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:34:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:34:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:34:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:34:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:34:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:34:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:34:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:34:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:34:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:34:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:34:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:34:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:34:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:34:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:34:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:34:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:34:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:34:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:34:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:34:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:34:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:34:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:34:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:34:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:34:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:34:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:34:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:34:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:34:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:34:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:34:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:34:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:34:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:34:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:34:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:34:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:34:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:34:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:34:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:34:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:34:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:34:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:34:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:34:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 08:34:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:34:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:34:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:34:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:34:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:34:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:34:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:34:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:34:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:34:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:34:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:34:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:34:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:34:35,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:34:35,198 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:34:35,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:34:35 BoogieIcfgContainer [2020-09-25 08:34:35,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:34:35,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:34:35,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:34:35,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:34:35,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:34:32" (1/3) ... [2020-09-25 08:34:35,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98d76e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:34:35, skipping insertion in model container [2020-09-25 08:34:35,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:33" (2/3) ... [2020-09-25 08:34:35,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98d76e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:34:35, skipping insertion in model container [2020-09-25 08:34:35,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:34:35" (3/3) ... [2020-09-25 08:34:35,216 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product23.cil.c [2020-09-25 08:34:35,230 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:34:35,244 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:34:35,269 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:34:35,308 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:34:35,308 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:34:35,308 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:34:35,308 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:34:35,309 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:34:35,309 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:34:35,309 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:34:35,309 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:34:35,343 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-25 08:34:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:34:35,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:35,366 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] [2020-09-25 08:34:35,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:35,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1731380127, now seen corresponding path program 1 times [2020-09-25 08:34:35,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:35,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182922978] [2020-09-25 08:34:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:36,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:40,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:40,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:34:40,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:34:40,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-25 08:34:40,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:40,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:34:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:40,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:34:41,208 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:41,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:41,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 08:34:41,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:41,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:41,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:41,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:41,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:41,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:41,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:34:41,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:41,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:41,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:34:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:41,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:41,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:34:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:41,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:41,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:41,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:41,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:41,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:41,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:41,532 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 08:34:41,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182922978] [2020-09-25 08:34:41,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:41,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:34:41,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076928267] [2020-09-25 08:34:41,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:34:41,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:41,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:34:41,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:34:41,567 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2020-09-25 08:34:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:43,195 INFO L93 Difference]: Finished difference Result 469 states and 565 transitions. [2020-09-25 08:34:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:34:43,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:34:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:43,218 INFO L225 Difference]: With dead ends: 469 [2020-09-25 08:34:43,219 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 08:34:43,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:34:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 08:34:43,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 250. [2020-09-25 08:34:43,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 08:34:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 274 transitions. [2020-09-25 08:34:43,366 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 274 transitions. Word has length 142 [2020-09-25 08:34:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:43,367 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 274 transitions. [2020-09-25 08:34:43,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:34:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 274 transitions. [2020-09-25 08:34:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:34:43,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:43,375 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] [2020-09-25 08:34:43,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:34:43,376 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:43,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1802899924, now seen corresponding path program 1 times [2020-09-25 08:34:43,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:43,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455671861] [2020-09-25 08:34:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:43,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:43,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:46,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:48,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:48,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:34:48,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:34:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-09-25 08:34:48,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:48,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:34:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:34:48,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 08:34:48,900 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:48,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:48,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:49,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 08:34:49,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:49,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:49,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:49,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:49,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:49,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:49,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:49,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:34:49,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:49,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:49,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:49,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:49,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:34:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:49,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:49,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:49,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:34:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:49,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:49,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:49,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:49,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:49,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:49,187 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 08:34:49,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455671861] [2020-09-25 08:34:49,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:49,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:34:49,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975890798] [2020-09-25 08:34:49,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:34:49,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:49,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:34:49,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:34:49,195 INFO L87 Difference]: Start difference. First operand 250 states and 274 transitions. Second operand 4 states. [2020-09-25 08:34:49,845 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:34:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:50,793 INFO L93 Difference]: Finished difference Result 380 states and 432 transitions. [2020-09-25 08:34:50,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:34:50,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:34:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:50,798 INFO L225 Difference]: With dead ends: 380 [2020-09-25 08:34:50,799 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 08:34:50,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:34:50,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 08:34:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 240. [2020-09-25 08:34:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 08:34:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 261 transitions. [2020-09-25 08:34:50,847 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 261 transitions. Word has length 143 [2020-09-25 08:34:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:50,848 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 261 transitions. [2020-09-25 08:34:50,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:34:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 261 transitions. [2020-09-25 08:34:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 08:34:50,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:50,850 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] [2020-09-25 08:34:50,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:34:50,851 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:50,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:50,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1907592051, now seen corresponding path program 1 times [2020-09-25 08:34:50,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:50,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702403565] [2020-09-25 08:34:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:55,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:55,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:34:55,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:34:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 08:34:55,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:55,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:34:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 08:34:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:34:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,316 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:56,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:56,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 08:34:56,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:34:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:56,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:34:56,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:56,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:56,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:34:56,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:56,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:56,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:34:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:56,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:34:56,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:34:56,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:56,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:56,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:34:56,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:34:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:56,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:34:56,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:34:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:34:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 08:34:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:56,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:56,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:56,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:56,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:56,848 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 08:34:56,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702403565] [2020-09-25 08:34:56,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:56,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:34:56,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866716607] [2020-09-25 08:34:56,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:34:56,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:56,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:34:56,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:34:56,856 INFO L87 Difference]: Start difference. First operand 240 states and 261 transitions. Second operand 8 states. [2020-09-25 08:34:57,366 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:34:58,802 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 08:34:59,462 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 08:34:59,934 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:00,237 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:00,586 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:00,906 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:35:01,231 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:01,806 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:02,881 INFO L93 Difference]: Finished difference Result 537 states and 628 transitions. [2020-09-25 08:35:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:35:02,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 08:35:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:02,887 INFO L225 Difference]: With dead ends: 537 [2020-09-25 08:35:02,887 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 08:35:02,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:35:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 08:35:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 355. [2020-09-25 08:35:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-25 08:35:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 396 transitions. [2020-09-25 08:35:02,952 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 396 transitions. Word has length 152 [2020-09-25 08:35:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:02,952 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 396 transitions. [2020-09-25 08:35:02,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:35:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 396 transitions. [2020-09-25 08:35:02,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 08:35:02,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:02,955 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] [2020-09-25 08:35:02,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:35:02,955 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:02,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:02,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1748167861, now seen corresponding path program 1 times [2020-09-25 08:35:02,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:02,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226918097] [2020-09-25 08:35:02,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:07,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:07,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 08:35:07,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:35:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4970 [2020-09-25 08:35:07,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:07,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:35:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 08:35:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:35:07,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,317 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:08,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:08,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 08:35:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:35:08,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:08,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:08,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:08,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:08,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:08,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:08,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:35:08,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:08,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:08,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:08,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:08,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:08,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:35:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:08,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:35:08,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:35:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:35:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:08,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:08,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:08,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:35:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:08,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:08,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:08,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:08,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:08,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:08,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:08,761 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 08:35:08,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226918097] [2020-09-25 08:35:08,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:08,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:35:08,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859870386] [2020-09-25 08:35:08,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:35:08,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:08,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:35:08,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:35:08,765 INFO L87 Difference]: Start difference. First operand 355 states and 396 transitions. Second operand 6 states. [2020-09-25 08:35:09,385 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:35:10,097 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:12,174 INFO L93 Difference]: Finished difference Result 1136 states and 1361 transitions. [2020-09-25 08:35:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:35:12,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 08:35:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:12,184 INFO L225 Difference]: With dead ends: 1136 [2020-09-25 08:35:12,184 INFO L226 Difference]: Without dead ends: 891 [2020-09-25 08:35:12,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:35:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-09-25 08:35:12,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 719. [2020-09-25 08:35:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-25 08:35:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 826 transitions. [2020-09-25 08:35:12,315 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 826 transitions. Word has length 157 [2020-09-25 08:35:12,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:12,315 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 826 transitions. [2020-09-25 08:35:12,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:35:12,316 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 826 transitions. [2020-09-25 08:35:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:35:12,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:12,319 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] [2020-09-25 08:35:12,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:35:12,320 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:12,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2125348283, now seen corresponding path program 1 times [2020-09-25 08:35:12,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:12,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836045282] [2020-09-25 08:35:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:12,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:12,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:13,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:15,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:15,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:35:15,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:35:15,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3188 [2020-09-25 08:35:15,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:15,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:35:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:35:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:35:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:15,938 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:15,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:15,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:16,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 08:35:16,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:16,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:16,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:16,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:16,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:16,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:16,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:16,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:16,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:16,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:16,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:16,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:16,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:16,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:16,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:35:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:16,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:16,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:16,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:35:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:35:16,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:35:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:35:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:16,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:16,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:16,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 08:35:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:16,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:16,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:16,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:16,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:35:16,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:16,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:35:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:16,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:16,246 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 08:35:16,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836045282] [2020-09-25 08:35:16,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:16,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:35:16,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518342945] [2020-09-25 08:35:16,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:35:16,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:35:16,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:35:16,249 INFO L87 Difference]: Start difference. First operand 719 states and 826 transitions. Second operand 10 states. [2020-09-25 08:35:16,761 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:18,053 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:18,406 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191