/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=DEEPEST --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_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:46:35,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:46:35,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:46:35,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:46:35,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:46:35,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:46:35,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:46:35,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:46:35,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:46:35,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:46:35,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:46:35,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:46:35,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:46:35,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:46:35,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:46:35,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:46:35,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:46:35,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:46:35,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:46:35,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:46:35,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:46:35,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:46:35,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:46:35,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:46:35,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:46:35,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:46:35,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:46:35,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:46:35,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:46:35,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:46:35,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:46:35,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:46:35,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:46:35,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:46:35,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:46:35,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:46:35,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:46:35,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:46:35,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:46:35,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:46:35,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:46:35,210 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 00:46:35,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:46:35,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:46:35,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:46:35,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:46:35,240 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:46:35,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:46:35,240 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:46:35,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:46:35,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:46:35,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:46:35,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:46:35,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:46:35,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:46:35,242 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:46:35,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:46:35,242 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:46:35,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:46:35,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:46:35,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:46:35,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:46:35,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:46:35,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:46:35,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:46:35,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:46:35,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:46:35,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:46:35,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:46:35,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:46:35,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:46:35,245 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:46:35,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:46:35,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:46:35,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:46:35,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:46:35,772 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:46:35,773 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-25 00:46:35,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96adc56cb/4291caaf13c44055b22c5f28ab853772/FLAG818100e7e [2020-09-25 00:46:36,473 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:46:36,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-09-25 00:46:36,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96adc56cb/4291caaf13c44055b22c5f28ab853772/FLAG818100e7e [2020-09-25 00:46:36,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96adc56cb/4291caaf13c44055b22c5f28ab853772 [2020-09-25 00:46:36,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:46:36,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:46:36,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:46:36,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:46:36,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:46:36,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:46:36" (1/1) ... [2020-09-25 00:46:36,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333f50dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:36, skipping insertion in model container [2020-09-25 00:46:36,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:46:36" (1/1) ... [2020-09-25 00:46:36,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:46:36,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:46:37,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:46:37,316 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:46:37,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:46:37,469 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:46:37,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37 WrapperNode [2020-09-25 00:46:37,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:46:37,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:46:37,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:46:37,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:46:37,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (1/1) ... [2020-09-25 00:46:37,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:46:37,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:46:37,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:46:37,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:46:37,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (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 00:46:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:46:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:46:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:46:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:46:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:46:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:46:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:46:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:46:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:46:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:46:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:46:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:46:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:46:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:46:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:46:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:46:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:46:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:46:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:46:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:46:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:46:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:46:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:46:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:46:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:46:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:46:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:46:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:46:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:46:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:46:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:46:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:46:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:46:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:46:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:46:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:46:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:46:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:46:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:46:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:46:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:46:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:46:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:46:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:46:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:46:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:46:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:46:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:46:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:46:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:46:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:46:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:46:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:46:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:46:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:46:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:46:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:46:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:46:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:46:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:46:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:46:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:46:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:46:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:46:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:46:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:46:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:46:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:46:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:46:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:46:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:46:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:46:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:46:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:46:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:46:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:46:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:46:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:46:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:46:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:46:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:46:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:46:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:46:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:46:39,062 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:46:39,062 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:46:39,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:46:39 BoogieIcfgContainer [2020-09-25 00:46:39,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:46:39,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:46:39,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:46:39,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:46:39,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:46:36" (1/3) ... [2020-09-25 00:46:39,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c0103b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:46:39, skipping insertion in model container [2020-09-25 00:46:39,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:37" (2/3) ... [2020-09-25 00:46:39,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c0103b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:46:39, skipping insertion in model container [2020-09-25 00:46:39,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:46:39" (3/3) ... [2020-09-25 00:46:39,079 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-09-25 00:46:39,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:46:39,102 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:46:39,123 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:46:39,155 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:46:39,155 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:46:39,156 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:46:39,156 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:46:39,156 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:46:39,156 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:46:39,156 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:46:39,156 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:46:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 00:46:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:46:39,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:39,204 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 00:46:39,205 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:39,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2089318466, now seen corresponding path program 1 times [2020-09-25 00:46:39,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:39,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015449996] [2020-09-25 00:46:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:39,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:41,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:44,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:44,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:46:44,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:46:44,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:46:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:46:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:46:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 00:46:45,162 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:45,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:45,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 00:46:45,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:45,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:45,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:45,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:45,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:45,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:45,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:45,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:45,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:45,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:45,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:45,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:45,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:45,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:45,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:45,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:45,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:46:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:45,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:45,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:45,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:45,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:46:45,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:46:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:45,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:45,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:45,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:45,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:46:45,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:45,585 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 00:46:45,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015449996] [2020-09-25 00:46:45,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:45,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:46:45,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390941594] [2020-09-25 00:46:45,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:46:45,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:45,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:46:45,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:46:45,629 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-25 00:46:46,347 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:47,721 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:48,033 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:46:48,358 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:48,731 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:49,083 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:49,801 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:50,145 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:50,585 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:51,990 INFO L93 Difference]: Finished difference Result 616 states and 771 transitions. [2020-09-25 00:46:51,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:46:51,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:46:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:52,017 INFO L225 Difference]: With dead ends: 616 [2020-09-25 00:46:52,017 INFO L226 Difference]: Without dead ends: 409 [2020-09-25 00:46:52,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:46:52,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-09-25 00:46:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 365. [2020-09-25 00:46:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 00:46:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 420 transitions. [2020-09-25 00:46:52,163 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 420 transitions. Word has length 142 [2020-09-25 00:46:52,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:52,164 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 420 transitions. [2020-09-25 00:46:52,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:46:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 420 transitions. [2020-09-25 00:46:52,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 00:46:52,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:52,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:52,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:46:52,171 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:52,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:52,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1513602354, now seen corresponding path program 1 times [2020-09-25 00:46:52,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:52,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967404443] [2020-09-25 00:46:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:52,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 00:46:57,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:46:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 00:46:57,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 00:46:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,548 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:57,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:57,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 00:46:57,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:57,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:57,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:57,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:57,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:57,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:57,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:57,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:57,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:46:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:57,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 00:46:57,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:46:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:57,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:57,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:57,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:57,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:57,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:46:57,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:57,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:46:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:57,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:57,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:58,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:58,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 00:46:58,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:58,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:46:58,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:58,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:58,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:58,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:58,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:58,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:58,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:46:58,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:58,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:58,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:58,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:58,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:58,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:58,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:58,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:58,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:46:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:58,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:46:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:58,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:58,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:58,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:58,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:58,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:58,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:58,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:58,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:58,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:46:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:58,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:58,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:58,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:58,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:58,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:58,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:58,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:58,141 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 00:46:58,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967404443] [2020-09-25 00:46:58,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:58,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:46:58,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86479212] [2020-09-25 00:46:58,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:46:58,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:58,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:46:58,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:46:58,148 INFO L87 Difference]: Start difference. First operand 365 states and 420 transitions. Second operand 9 states. [2020-09-25 00:46:59,677 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:00,032 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:00,352 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:47:00,678 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:01,025 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:47:01,329 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:02,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:02,433 INFO L93 Difference]: Finished difference Result 711 states and 883 transitions. [2020-09-25 00:47:02,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:47:02,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 00:47:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:02,445 INFO L225 Difference]: With dead ends: 711 [2020-09-25 00:47:02,445 INFO L226 Difference]: Without dead ends: 456 [2020-09-25 00:47:02,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:47:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-25 00:47:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 376. [2020-09-25 00:47:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-25 00:47:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 431 transitions. [2020-09-25 00:47:02,519 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 431 transitions. Word has length 190 [2020-09-25 00:47:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:02,520 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 431 transitions. [2020-09-25 00:47:02,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:47:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 431 transitions. [2020-09-25 00:47:02,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 00:47:02,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:02,524 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:47:02,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:47:02,525 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:02,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:02,525 INFO L82 PathProgramCache]: Analyzing trace with hash 547817098, now seen corresponding path program 1 times [2020-09-25 00:47:02,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:02,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785173699] [2020-09-25 00:47:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:02,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:02,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:03,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:07,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:07,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:47:07,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:47:07,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 00:47:07,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:07,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:07,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 00:47:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:07,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:07,958 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:07,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:08,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:47:08,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:08,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:08,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:08,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:08,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:08,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:47:08,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:08,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:08,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:08,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:08,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:47:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:47:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:47:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:47:08,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:47:08,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:08,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:08,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:47:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:47:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:47:08,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:47:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:47:08,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 00:47:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:47:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:08,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:08,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:47:08,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:47:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:08,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:47:08,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:47:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:47:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:08,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:08,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:47:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:47:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:08,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:08,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 00:47:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:08,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:08,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:08,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:08,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:47:08,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785173699] [2020-09-25 00:47:08,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:47:08,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:47:08,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802883910] [2020-09-25 00:47:08,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:47:08,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:08,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:47:08,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:08,525 INFO L87 Difference]: Start difference. First operand 376 states and 431 transitions. Second operand 9 states. [2020-09-25 00:47:09,729 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:10,059 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:10,399 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:10,746 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:11,075 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:12,365 INFO L93 Difference]: Finished difference Result 756 states and 964 transitions. [2020-09-25 00:47:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:47:12,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2020-09-25 00:47:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:12,371 INFO L225 Difference]: With dead ends: 756 [2020-09-25 00:47:12,371 INFO L226 Difference]: Without dead ends: 490 [2020-09-25 00:47:12,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:47:12,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-25 00:47:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 382. [2020-09-25 00:47:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 00:47:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 437 transitions. [2020-09-25 00:47:12,427 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 437 transitions. Word has length 205 [2020-09-25 00:47:12,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:12,427 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 437 transitions. [2020-09-25 00:47:12,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:47:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 437 transitions. [2020-09-25 00:47:12,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 00:47:12,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:12,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:47:12,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:47:12,431 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:12,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:12,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2047341076, now seen corresponding path program 1 times [2020-09-25 00:47:12,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:12,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733608035] [2020-09-25 00:47:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:12,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:12,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:17,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:17,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:47:17,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:47:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:47:17,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:47:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 00:47:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 00:47:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:17,842 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:17,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:17,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:17,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:17,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 00:47:17,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:18,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:18,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:18,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:18,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:18,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:47:18,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:18,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:18,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:18,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:47:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:47:18,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:47:18,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:47:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:18,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:47:18,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:47:18,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:47:18,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:18,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:47:18,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:18,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:47:18,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:18,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:47:18,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:18,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:47:18,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:47:18,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:47:18,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:47:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:47:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:18,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:47:18,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:18,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:18,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:47:18,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:18,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 00:47:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:18,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:18,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:18,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:18,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:18,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:47:18,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:18,445 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 00:47:18,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733608035] [2020-09-25 00:47:18,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:47:18,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:47:18,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118730048] [2020-09-25 00:47:18,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:47:18,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:18,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:47:18,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:18,449 INFO L87 Difference]: Start difference. First operand 382 states and 437 transitions. Second operand 9 states. [2020-09-25 00:47:19,465 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:47:19,950 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:47:20,299 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:21,179 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:21,557 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:47:21,940 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:22,312 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:47:22,627 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:24,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:24,985 INFO L93 Difference]: Finished difference Result 947 states and 1266 transitions. [2020-09-25 00:47:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:47:24,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-25 00:47:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:24,991 INFO L225 Difference]: With dead ends: 947 [2020-09-25 00:47:24,991 INFO L226 Difference]: Without dead ends: 675 [2020-09-25 00:47:24,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:47:24,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2020-09-25 00:47:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 545. [2020-09-25 00:47:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-09-25 00:47:25,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 660 transitions. [2020-09-25 00:47:25,070 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 660 transitions. Word has length 181 [2020-09-25 00:47:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:25,070 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 660 transitions. [2020-09-25 00:47:25,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:47:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 660 transitions. [2020-09-25 00:47:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 00:47:25,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:25,076 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:47:25,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:47:25,077 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:25,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:25,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1643485838, now seen corresponding path program 1 times [2020-09-25 00:47:25,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:25,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895800612] [2020-09-25 00:47:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking...