/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:00:20,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:00:20,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:00:20,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:00:20,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:00:20,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:00:20,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:00:20,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:00:20,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:00:20,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:00:20,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:00:20,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:00:20,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:00:20,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:00:20,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:00:20,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:00:20,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:00:20,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:00:20,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:00:20,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:00:20,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:00:20,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:00:20,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:00:20,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:00:20,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:00:20,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:00:20,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:00:20,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:00:20,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:00:20,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:00:20,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:00:20,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:00:20,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:00:20,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:00:20,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:00:20,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:00:20,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:00:20,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:00:20,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:00:20,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:00:20,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:00:20,229 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 11:00:20,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:00:20,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:00:20,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:00:20,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:00:20,284 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:00:20,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:00:20,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:00:20,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:00:20,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:00:20,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:00:20,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:00:20,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:00:20,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:00:20,288 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:00:20,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:00:20,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:00:20,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:00:20,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:00:20,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:00:20,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:00:20,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:00:20,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:00:20,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:00:20,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:00:20,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:00:20,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:00:20,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:00:20,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:00:20,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:00:20,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:00:20,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:00:20,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:00:20,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:00:20,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:00:20,766 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:00:20,767 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-25 11:00:20,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab8675856/035c0d9707d34ea5bda08290a2a9220c/FLAGb2613f73f [2020-09-25 11:00:21,469 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:00:21,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-25 11:00:21,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab8675856/035c0d9707d34ea5bda08290a2a9220c/FLAGb2613f73f [2020-09-25 11:00:21,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab8675856/035c0d9707d34ea5bda08290a2a9220c [2020-09-25 11:00:21,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:00:21,779 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:00:21,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:00:21,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:00:21,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:00:21,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:00:21" (1/1) ... [2020-09-25 11:00:21,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:21, skipping insertion in model container [2020-09-25 11:00:21,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:00:21" (1/1) ... [2020-09-25 11:00:21,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:00:21,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:00:22,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:00:22,237 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:00:22,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:00:22,493 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:00:22,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22 WrapperNode [2020-09-25 11:00:22,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:00:22,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:00:22,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:00:22,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:00:22,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (1/1) ... [2020-09-25 11:00:22,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:00:22,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:00:22,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:00:22,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:00:22,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (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 11:00:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:00:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:00:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:00:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:00:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:00:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:00:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:00:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:00:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 11:00:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:00:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:00:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:00:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:00:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:00:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:00:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:00:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:00:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:00:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 11:00:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:00:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 11:00:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:00:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:00:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:00:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:00:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:00:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:00:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:00:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:00:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:00:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:00:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:00:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:00:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:00:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:00:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:00:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:00:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:00:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:00:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:00:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:00:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:00:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:00:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:00:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:00:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:00:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:00:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:00:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:00:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:00:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:00:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:00:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:00:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 11:00:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:00:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:00:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:00:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:00:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:00:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:00:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:00:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:00:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:00:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:00:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:00:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:00:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:00:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:00:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:00:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:00:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:00:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:00:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:00:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:00:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:00:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:00:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:00:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:00:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:00:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:00:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:00:23,918 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:00:23,918 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:00:23,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:00:23 BoogieIcfgContainer [2020-09-25 11:00:23,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:00:23,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:00:23,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:00:23,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:00:23,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:00:21" (1/3) ... [2020-09-25 11:00:23,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354079f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:00:23, skipping insertion in model container [2020-09-25 11:00:23,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:22" (2/3) ... [2020-09-25 11:00:23,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354079f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:00:23, skipping insertion in model container [2020-09-25 11:00:23,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:00:23" (3/3) ... [2020-09-25 11:00:23,937 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-09-25 11:00:23,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:00:23,963 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:00:23,988 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:00:24,025 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:00:24,025 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:00:24,025 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:00:24,025 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:00:24,026 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:00:24,026 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:00:24,026 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:00:24,026 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:00:24,059 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 11:00:24,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:00:24,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:24,079 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 11:00:24,080 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2069436890, now seen corresponding path program 1 times [2020-09-25 11:00:24,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:24,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934181859] [2020-09-25 11:00:24,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:24,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:26,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:00:29,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:00:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 11:00:29,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:00:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:00:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:00:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:00:29,920 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:29,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:30,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 11:00:30,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:00:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:30,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:00:30,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:30,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:30,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:30,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:30,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:00:30,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:30,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:30,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:30,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:30,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:30,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:30,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:30,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:00:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:30,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:00:30,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 11:00:30,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:00:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:30,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:30,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:30,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:30,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:30,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:30,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:30,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:30,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:30,516 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 11:00:30,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934181859] [2020-09-25 11:00:30,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:30,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:00:30,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764387559] [2020-09-25 11:00:30,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:00:30,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:30,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:00:30,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:00:30,556 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 8 states. [2020-09-25 11:00:31,159 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:32,267 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:32,655 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:33,075 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:33,465 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:33,826 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:34,161 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:34,466 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:36,968 INFO L93 Difference]: Finished difference Result 675 states and 842 transitions. [2020-09-25 11:00:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:00:36,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 11:00:36,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:36,996 INFO L225 Difference]: With dead ends: 675 [2020-09-25 11:00:36,996 INFO L226 Difference]: Without dead ends: 467 [2020-09-25 11:00:37,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:00:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-25 11:00:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 423. [2020-09-25 11:00:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2020-09-25 11:00:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 488 transitions. [2020-09-25 11:00:37,157 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 488 transitions. Word has length 142 [2020-09-25 11:00:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:37,158 INFO L479 AbstractCegarLoop]: Abstraction has 423 states and 488 transitions. [2020-09-25 11:00:37,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:00:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 488 transitions. [2020-09-25 11:00:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 11:00:37,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:37,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:00:37,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:00:37,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:37,165 INFO L82 PathProgramCache]: Analyzing trace with hash -893154444, now seen corresponding path program 1 times [2020-09-25 11:00:37,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:37,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796242963] [2020-09-25 11:00:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:37,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:37,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:38,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 11:00:42,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:00:42,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 11:00:42,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:00:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:00:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 11:00:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,574 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:42,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:42,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 11:00:42,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:00:42,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:42,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:42,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:42,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:42,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:42,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:42,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:42,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:42,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:42,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 11:00:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:42,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:42,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:00:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:42,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 11:00:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:42,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:42,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:00:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:42,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:42,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:42,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:42,984 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 11:00:42,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796242963] [2020-09-25 11:00:42,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:42,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:00:42,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691098537] [2020-09-25 11:00:42,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:00:42,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:42,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:00:42,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:00:42,989 INFO L87 Difference]: Start difference. First operand 423 states and 488 transitions. Second operand 5 states. [2020-09-25 11:00:43,455 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:44,835 INFO L93 Difference]: Finished difference Result 821 states and 1041 transitions. [2020-09-25 11:00:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:00:44,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 11:00:44,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:44,847 INFO L225 Difference]: With dead ends: 821 [2020-09-25 11:00:44,847 INFO L226 Difference]: Without dead ends: 508 [2020-09-25 11:00:44,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:00:44,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-09-25 11:00:44,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 417. [2020-09-25 11:00:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-09-25 11:00:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 477 transitions. [2020-09-25 11:00:44,931 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 477 transitions. Word has length 148 [2020-09-25 11:00:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:44,932 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 477 transitions. [2020-09-25 11:00:44,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:00:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 477 transitions. [2020-09-25 11:00:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:00:44,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:44,936 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] [2020-09-25 11:00:44,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:00:44,936 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:44,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1177152925, now seen corresponding path program 1 times [2020-09-25 11:00:44,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:44,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851439556] [2020-09-25 11:00:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:45,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:45,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 11:00:50,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:00:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 11:00:50,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:00:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:00:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 11:00:50,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,320 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:50,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:50,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 11:00:50,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:00:50,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:50,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:50,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:50,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:50,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:50,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:50,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:00:50,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:50,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:50,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 11:00:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:50,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:00:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:00:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 11:00:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:00:50,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:50,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:00:50,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:00:50,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:00:50,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:00:50,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:00:50,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:00:50,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:00:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:00:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:50,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:50,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:50,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:00:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:50,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:50,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:50,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:50,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 11:00:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:50,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:50,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:50,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:50,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:50,938 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 11:00:50,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851439556] [2020-09-25 11:00:50,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:50,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:00:50,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198852800] [2020-09-25 11:00:50,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:00:50,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:50,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:00:50,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:00:50,944 INFO L87 Difference]: Start difference. First operand 417 states and 477 transitions. Second operand 8 states. [2020-09-25 11:00:51,467 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:52,905 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:54,810 INFO L93 Difference]: Finished difference Result 1127 states and 1516 transitions. [2020-09-25 11:00:54,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:00:54,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 11:00:54,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:54,819 INFO L225 Difference]: With dead ends: 1127 [2020-09-25 11:00:54,819 INFO L226 Difference]: Without dead ends: 820 [2020-09-25 11:00:54,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 11:00:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-09-25 11:00:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 621. [2020-09-25 11:00:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 11:00:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 730 transitions. [2020-09-25 11:00:54,921 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 730 transitions. Word has length 161 [2020-09-25 11:00:54,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:54,922 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 730 transitions. [2020-09-25 11:00:54,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:00:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 730 transitions. [2020-09-25 11:00:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-25 11:00:54,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:54,927 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:00:54,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:00:54,927 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:54,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:54,928 INFO L82 PathProgramCache]: Analyzing trace with hash 183246742, now seen corresponding path program 1 times [2020-09-25 11:00:54,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:54,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089732430] [2020-09-25 11:00:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:55,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:55,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-09-25 11:01:00,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:01:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 11:01:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 11:01:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:01:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 228 [2020-09-25 11:01:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:01:00,427 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:01:00,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:01:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:01:00,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 11:01:00,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:01:00,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:01:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:00,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:01:00,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:01:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:00,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:00,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:01:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:00,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:01:00,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:01:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:01:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:00,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 11:01:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:01:00,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:01:00,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:01:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 11:01:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 11:01:02,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:01:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1268 [2020-09-25 11:01:02,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 11:01:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:01:02,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:01:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 11:01:02,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:01:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 11:01:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:01:02,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:01:02,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 11:01:02,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:01:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:01:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:01:02,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:01:02,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 11:01:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:01:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:01:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:01:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:01:02,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:02,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:01:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:01:02,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:01:02,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 11:01:02,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:01:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:01:02,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:02,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:01:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:02,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:02,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:01:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:01:02,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:01:02,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 11:01:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:01:02,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:01:02,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:02,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:02,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:02,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:02,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 11:01:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:01:02,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:02,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:02,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:01:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:01:02,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-25 11:01:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:01:02,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:01:02,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:01:02,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:01:02,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 11:01:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 11:01:02,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 11:01:02,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:01:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 11:01:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 11:01:02,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:02,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:02,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:01:02,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:02,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:01:02,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:02,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:01:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:01:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:02,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:01:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:02,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:03,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:03,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:01:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:03,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:01:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:01:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:03,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 11:01:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:03,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:03,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:03,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:01:03,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:01:03,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:03,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:01:03,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:03,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-25 11:01:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:03,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:03,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:03,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:03,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:03,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:01:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-09-25 11:01:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:03,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:03,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:03,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:03,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 11:01:03,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089732430] [2020-09-25 11:01:03,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:01:03,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 11:01:03,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076628441] [2020-09-25 11:01:03,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 11:01:03,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:01:03,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 11:01:03,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:01:03,233 INFO L87 Difference]: Start difference. First operand 621 states and 730 transitions. Second operand 21 states. [2020-09-25 11:01:03,843 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:01:05,237 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:01:05,882 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:01:06,226 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:01:06,605 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 11:01:06,975 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:01:07,358 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:01:07,674 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:01:08,325 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:01:08,656 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:01:09,016 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193