/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:17:22,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:17:22,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:17:22,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:17:22,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:17:22,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:17:22,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:17:22,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:17:22,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:17:22,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:17:22,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:17:22,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:17:22,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:17:22,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:17:22,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:17:22,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:17:22,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:17:22,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:17:22,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:17:22,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:17:22,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:17:22,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:17:22,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:17:22,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:17:22,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:17:22,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:17:22,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:17:22,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:17:22,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:17:22,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:17:22,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:17:22,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:17:22,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:17:22,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:17:22,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:17:22,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:17:22,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:17:22,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:17:22,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:17:22,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:17:22,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:17:22,744 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 14:17:22,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:17:22,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:17:22,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:17:22,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:17:22,772 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:17:22,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:17:22,773 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:17:22,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:17:22,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:17:22,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:17:22,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:17:22,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:17:22,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:17:22,774 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:17:22,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:17:22,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:17:22,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:17:22,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:17:22,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:17:22,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:17:22,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:17:22,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:17:22,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:17:22,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:17:22,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:17:22,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:17:22,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:17:22,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:17:22,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:17:22,778 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:17:23,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:17:23,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:17:23,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:17:23,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:17:23,296 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:17:23,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 14:17:23,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cb20cabf/d275e7e479b54ecc9662bb954ed1d3f2/FLAG5b18ef14c [2020-09-25 14:17:24,056 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:17:24,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 14:17:24,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cb20cabf/d275e7e479b54ecc9662bb954ed1d3f2/FLAG5b18ef14c [2020-09-25 14:17:24,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cb20cabf/d275e7e479b54ecc9662bb954ed1d3f2 [2020-09-25 14:17:24,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:17:24,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:17:24,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:24,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:17:24,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:17:24,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:24" (1/1) ... [2020-09-25 14:17:24,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:24, skipping insertion in model container [2020-09-25 14:17:24,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:24" (1/1) ... [2020-09-25 14:17:24,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:17:24,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:17:24,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:24,843 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:17:25,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:25,177 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:17:25,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25 WrapperNode [2020-09-25 14:17:25,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:25,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:17:25,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:17:25,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:17:25,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (1/1) ... [2020-09-25 14:17:25,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:17:25,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:17:25,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:17:25,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:17:25,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (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 14:17:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:17:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:17:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:17:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:17:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:17:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:17:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:17:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:17:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:17:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:17:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:17:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:17:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:17:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:17:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:17:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:17:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:17:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:17:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:17:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:17:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:17:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:17:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:17:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:17:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:17:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:17:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:17:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:17:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:17:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:17:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:17:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:17:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:17:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:17:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:17:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:17:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:17:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:17:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:17:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:17:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:17:26,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:17:26,717 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:17:26,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:26 BoogieIcfgContainer [2020-09-25 14:17:26,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:17:26,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:17:26,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:17:26,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:17:26,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:24" (1/3) ... [2020-09-25 14:17:26,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a07e1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:26, skipping insertion in model container [2020-09-25 14:17:26,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:25" (2/3) ... [2020-09-25 14:17:26,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a07e1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:26, skipping insertion in model container [2020-09-25 14:17:26,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:26" (3/3) ... [2020-09-25 14:17:26,739 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-09-25 14:17:26,752 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:17:26,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:17:26,794 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:17:26,841 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:17:26,842 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:17:26,843 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:17:26,843 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:17:26,844 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:17:26,844 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:17:26,844 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:17:26,845 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:17:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 14:17:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 14:17:26,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:26,930 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 14:17:26,931 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:26,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:26,940 INFO L82 PathProgramCache]: Analyzing trace with hash -757984097, now seen corresponding path program 1 times [2020-09-25 14:17:26,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:26,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458425862] [2020-09-25 14:17:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:27,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:27,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:29,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:30,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:32,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:32,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 14:17:32,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:17:32,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 14:17:32,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:32,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:17:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:17:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:17:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:17:33,054 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:33,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-25 14:17:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:17:33,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:17:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:33,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:33,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:33,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:33,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:33,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:33,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:17:33,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:33,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:33,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:33,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:33,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:17:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:33,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:17:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:33,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:33,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:33,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:33,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:33,708 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 14:17:33,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458425862] [2020-09-25 14:17:33,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:33,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:17:33,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394851372] [2020-09-25 14:17:33,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:17:33,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:33,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:17:33,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:17:33,743 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 5 states. [2020-09-25 14:17:34,707 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:17:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:17:36,065 INFO L93 Difference]: Finished difference Result 554 states and 656 transitions. [2020-09-25 14:17:36,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:17:36,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 14:17:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:17:36,088 INFO L225 Difference]: With dead ends: 554 [2020-09-25 14:17:36,088 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 14:17:36,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:17:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 14:17:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 294. [2020-09-25 14:17:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-25 14:17:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 321 transitions. [2020-09-25 14:17:36,307 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 321 transitions. Word has length 148 [2020-09-25 14:17:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:17:36,310 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 321 transitions. [2020-09-25 14:17:36,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:17:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 321 transitions. [2020-09-25 14:17:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 14:17:36,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:36,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:17:36,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:17:36,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:36,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:36,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1308377398, now seen corresponding path program 1 times [2020-09-25 14:17:36,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:36,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299689642] [2020-09-25 14:17:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:36,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:36,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:37,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:37,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:39,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:40,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:40,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:41,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:41,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 14:17:41,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:17:41,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 14:17:41,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:41,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:41,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:17:41,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 14:17:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 14:17:41,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:41,744 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:17:41,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:17:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:41,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:17:42,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 14:17:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:17:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:17:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:42,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:42,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:17:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:42,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:42,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:17:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:42,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:17:42,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:42,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:17:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:42,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:42,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:17:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:42,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:17:42,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:42,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:17:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:17:42,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:17:42,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:17:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 14:17:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 14:17:42,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:17:42,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 14:17:42,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 14:17:42,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:17:42,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:17:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:17:42,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:17:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:17:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:17:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:17:42,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:17:42,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:17:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:17:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:17:42,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:17:42,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:17:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:17:42,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:17:42,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:17:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:17:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 14:17:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:42,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 14:17:42,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:17:42,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:17:42,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:17:42,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 14:17:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:42,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:17:42,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:17:42,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:17:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:17:42,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:17:42,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:17:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:17:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:17:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:17:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:17:42,503 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 14:17:42,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299689642] [2020-09-25 14:17:42,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:17:42,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 14:17:42,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689904655] [2020-09-25 14:17:42,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:17:42,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:17:42,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:17:42,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:17:42,509 INFO L87 Difference]: Start difference. First operand 294 states and 321 transitions. Second operand 13 states. [2020-09-25 14:17:43,317 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:17:44,690 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:17:45,690 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:17:46,350 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 14:17:46,991 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:17:47,606 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-09-25 14:17:48,181 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 14:17:48,508 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:48,825 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:17:49,190 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:17:49,563 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:49,923 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:50,264 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:17:50,945 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:17:51,263 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:51,619 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 14:17:51,950 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:17:52,285 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 14:17:52,763 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:17:53,087 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:17:54,095 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 14:17:54,746 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-09-25 14:17:55,258 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:17:56,366 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:17:56,783 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 14:17:59,210 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:17:59,549 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:17:59,870 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:00,399 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:18:02,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:02,161 INFO L93 Difference]: Finished difference Result 1188 states and 1531 transitions. [2020-09-25 14:18:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-09-25 14:18:02,162 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2020-09-25 14:18:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:02,174 INFO L225 Difference]: With dead ends: 1188 [2020-09-25 14:18:02,174 INFO L226 Difference]: Without dead ends: 961 [2020-09-25 14:18:02,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2096 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2020-09-25 14:18:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-25 14:18:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 686. [2020-09-25 14:18:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2020-09-25 14:18:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 760 transitions. [2020-09-25 14:18:02,339 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 760 transitions. Word has length 180 [2020-09-25 14:18:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:02,339 INFO L479 AbstractCegarLoop]: Abstraction has 686 states and 760 transitions. [2020-09-25 14:18:02,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:18:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 760 transitions. [2020-09-25 14:18:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-25 14:18:02,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:02,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:02,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:18:02,344 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:02,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:02,344 INFO L82 PathProgramCache]: Analyzing trace with hash 426769892, now seen corresponding path program 1 times [2020-09-25 14:18:02,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:02,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072652463] [2020-09-25 14:18:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:02,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:03,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:03,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:07,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-25 14:18:07,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:18:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 14:18:07,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:07,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:07,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:18:07,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:18:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-09-25 14:18:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:07,751 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:18:07,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:07,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:18:08,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 14:18:08,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:18:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:18:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:08,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:08,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:08,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:18:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:08,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:08,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:18:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:08,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:18:08,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:08,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:18:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:08,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:08,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:08,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:18:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:18:08,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:08,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:18:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:18:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:18:08,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:18:08,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:18:08,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:08,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:18:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:18:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:18:08,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:18:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 14:18:08,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:18:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 14:18:08,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:18:08,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:18:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 14:18:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:18:08,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:18:08,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:18:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 14:18:08,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:18:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:18:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 14:18:08,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:18:08,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:18:08,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:18:08,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 14:18:08,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:18:08,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 14:18:08,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:18:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:08,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:18:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:18:08,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:18:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:08,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:08,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 14:18:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:08,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:08,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:08,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-09-25 14:18:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:08,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:08,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:08,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:08,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:08,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:18:08,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:08,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:08,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:18:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:08,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:09,027 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 14:18:09,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072652463] [2020-09-25 14:18:09,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:09,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 14:18:09,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597563561] [2020-09-25 14:18:09,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:18:09,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:09,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:18:09,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:18:09,034 INFO L87 Difference]: Start difference. First operand 686 states and 760 transitions. Second operand 14 states. [2020-09-25 14:18:09,975 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-25 14:18:12,394 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-25 14:18:12,724 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:13,299 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-25 14:18:13,595 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 196