/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:13:01,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:13:01,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:13:01,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:13:01,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:13:01,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:13:01,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:13:01,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:13:01,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:13:01,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:13:01,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:13:01,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:13:01,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:13:01,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:13:01,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:13:01,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:13:01,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:13:01,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:13:01,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:13:01,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:13:01,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:13:01,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:13:01,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:13:01,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:13:01,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:13:01,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:13:01,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:13:01,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:13:01,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:13:01,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:13:01,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:13:01,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:13:01,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:13:01,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:13:01,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:13:01,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:13:01,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:13:01,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:13:01,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:13:01,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:13:01,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:13:01,225 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 05:13:01,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:13:01,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:13:01,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:13:01,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:13:01,257 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:13:01,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:13:01,257 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:13:01,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:13:01,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:13:01,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:13:01,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:13:01,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:13:01,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:13:01,258 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:13:01,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:13:01,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:13:01,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:13:01,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:13:01,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:13:01,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:13:01,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:13:01,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:13:01,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:13:01,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:13:01,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:13:01,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:13:01,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:13:01,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:13:01,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:13:01,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:13:01,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:13:01,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:13:01,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:13:01,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:13:01,807 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:13:01,808 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-25 05:13:01,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d20c4b9f3/87b04b2d729b47dfadc17b3cfb82b3fc/FLAGb53f67676 [2020-09-25 05:13:02,448 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:13:02,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-25 05:13:02,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d20c4b9f3/87b04b2d729b47dfadc17b3cfb82b3fc/FLAGb53f67676 [2020-09-25 05:13:02,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d20c4b9f3/87b04b2d729b47dfadc17b3cfb82b3fc [2020-09-25 05:13:02,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:13:02,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:13:02,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:02,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:13:02,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:13:02,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:02" (1/1) ... [2020-09-25 05:13:02,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0386e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:02, skipping insertion in model container [2020-09-25 05:13:02,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:02" (1/1) ... [2020-09-25 05:13:02,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:13:02,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:13:03,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:03,330 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:13:03,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:03,471 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:13:03,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03 WrapperNode [2020-09-25 05:13:03,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:03,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:13:03,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:13:03,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:13:03,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (1/1) ... [2020-09-25 05:13:03,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:13:03,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:13:03,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:13:03,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:13:03,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (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 05:13:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:13:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:13:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:13:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:13:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:13:03,646 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:13:03,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:03,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:03,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:03,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:13:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:13:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:13:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:13:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:13:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:13:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:13:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:13:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:13:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:13:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:13:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:13:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:13:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:13:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:13:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:13:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:13:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:13:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:13:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:13:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:13:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:13:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:13:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:13:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:13:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:13:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:13:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:13:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:13:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:13:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:13:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:13:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:13:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:13:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:13:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:13:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:13:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:13:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:13:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:13:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:13:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:13:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:13:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:13:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:13:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:13:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:13:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:13:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:13:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:13:04,933 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:13:04,933 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:13:04,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:04 BoogieIcfgContainer [2020-09-25 05:13:04,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:13:04,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:13:04,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:13:04,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:13:04,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:13:02" (1/3) ... [2020-09-25 05:13:04,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b74da9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:04, skipping insertion in model container [2020-09-25 05:13:04,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:03" (2/3) ... [2020-09-25 05:13:04,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b74da9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:04, skipping insertion in model container [2020-09-25 05:13:04,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:04" (3/3) ... [2020-09-25 05:13:04,950 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2020-09-25 05:13:04,961 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:13:04,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:13:04,996 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:13:05,030 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:13:05,030 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:13:05,030 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:13:05,030 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:13:05,031 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:13:05,031 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:13:05,031 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:13:05,031 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:13:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-25 05:13:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:13:05,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:05,081 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 05:13:05,081 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:05,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:05,088 INFO L82 PathProgramCache]: Analyzing trace with hash -416095138, now seen corresponding path program 1 times [2020-09-25 05:13:05,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:05,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794253283] [2020-09-25 05:13:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:05,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:07,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:08,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:10,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:10,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:10,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:13:10,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:10,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:13:10,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:10,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:13:10,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:10,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 05:13:10,936 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:10,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:11,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 05:13:11,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:11,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:11,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:11,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:11,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:11,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:13:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:11,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:11,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:11,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:11,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:11,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:13:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:11,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:11,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:13:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:11,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:11,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:11,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:11,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:11,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:11,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:11,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:11,293 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 05:13:11,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794253283] [2020-09-25 05:13:11,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:11,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:13:11,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886154052] [2020-09-25 05:13:11,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:13:11,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:11,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:13:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:11,336 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2020-09-25 05:13:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:13,029 INFO L93 Difference]: Finished difference Result 510 states and 605 transitions. [2020-09-25 05:13:13,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:13:13,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:13:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:13,071 INFO L225 Difference]: With dead ends: 510 [2020-09-25 05:13:13,072 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 05:13:13,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:13,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 05:13:13,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 272. [2020-09-25 05:13:13,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 05:13:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 297 transitions. [2020-09-25 05:13:13,297 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 297 transitions. Word has length 148 [2020-09-25 05:13:13,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:13,300 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 297 transitions. [2020-09-25 05:13:13,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:13:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 297 transitions. [2020-09-25 05:13:13,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:13:13,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:13,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:13,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:13:13,317 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:13,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:13,318 INFO L82 PathProgramCache]: Analyzing trace with hash 795504542, now seen corresponding path program 1 times [2020-09-25 05:13:13,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:13,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309729750] [2020-09-25 05:13:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:13,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:15,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:13:18,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:13:18,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:13:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:13:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,681 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:18,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 05:13:18,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:18,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:18,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:18,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:18,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:18,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:18,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:18,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:18,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:13:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:18,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:18,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:18,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:18,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:18,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:18,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:18,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:18,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:13:18,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309729750] [2020-09-25 05:13:18,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:18,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:13:18,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703958468] [2020-09-25 05:13:18,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:13:18,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:18,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:13:18,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:13:18,910 INFO L87 Difference]: Start difference. First operand 272 states and 297 transitions. Second operand 5 states. [2020-09-25 05:13:19,572 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:20,824 INFO L93 Difference]: Finished difference Result 435 states and 496 transitions. [2020-09-25 05:13:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:13:20,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:13:20,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:20,830 INFO L225 Difference]: With dead ends: 435 [2020-09-25 05:13:20,830 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 05:13:20,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 05:13:20,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 262. [2020-09-25 05:13:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 05:13:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-09-25 05:13:20,879 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 149 [2020-09-25 05:13:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:20,879 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-09-25 05:13:20,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:13:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-09-25 05:13:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:13:20,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:20,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:20,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:13:20,883 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:20,883 INFO L82 PathProgramCache]: Analyzing trace with hash 639518028, now seen corresponding path program 1 times [2020-09-25 05:13:20,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:20,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894073454] [2020-09-25 05:13:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:20,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:21,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:21,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:22,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:13:25,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:13:25,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 05:13:25,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:13:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:13:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,244 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:26,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:26,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 05:13:26,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:26,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:26,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:26,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:26,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:26,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:26,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:26,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:26,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:26,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:26,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:13:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:26,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:26,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:13:26,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:13:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:26,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:26,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:13:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:26,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:26,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:26,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:26,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:26,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:26,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:26,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:26,478 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 05:13:26,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894073454] [2020-09-25 05:13:26,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:26,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:13:26,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707853468] [2020-09-25 05:13:26,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:13:26,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:26,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:13:26,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:13:26,481 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 6 states. [2020-09-25 05:13:26,943 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:28,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:28,168 INFO L93 Difference]: Finished difference Result 482 states and 561 transitions. [2020-09-25 05:13:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:13:28,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:13:28,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:28,175 INFO L225 Difference]: With dead ends: 482 [2020-09-25 05:13:28,176 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 05:13:28,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:13:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 05:13:28,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 262. [2020-09-25 05:13:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 05:13:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2020-09-25 05:13:28,238 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 162 [2020-09-25 05:13:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:28,238 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2020-09-25 05:13:28,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:13:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2020-09-25 05:13:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 05:13:28,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:28,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:28,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:13:28,242 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:28,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:28,242 INFO L82 PathProgramCache]: Analyzing trace with hash 477706998, now seen corresponding path program 1 times [2020-09-25 05:13:28,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:28,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754561624] [2020-09-25 05:13:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:28,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:28,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:30,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:31,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:31,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 05:13:33,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:13:33,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:13:33,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:33,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 05:13:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:33,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,612 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:33,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 05:13:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:33,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:33,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:33,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:33,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:33,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:33,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:33,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:33,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:13:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:33,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:33,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:13:33,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 05:13:33,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:13:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:33,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:13:33,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:13:33,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:33,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:13:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:13:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:13:33,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:33,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:33,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:33,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:33,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:34,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:34,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 05:13:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:34,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:13:34,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 05:13:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:34,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:34,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,102 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 05:13:34,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754561624] [2020-09-25 05:13:34,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:34,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:13:34,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674813420] [2020-09-25 05:13:34,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:13:34,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:34,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:13:34,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:13:34,106 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand 8 states. [2020-09-25 05:13:34,685 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:36,592 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:13:38,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:38,065 INFO L93 Difference]: Finished difference Result 678 states and 812 transitions. [2020-09-25 05:13:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 05:13:38,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 05:13:38,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:38,071 INFO L225 Difference]: With dead ends: 678 [2020-09-25 05:13:38,071 INFO L226 Difference]: Without dead ends: 531 [2020-09-25 05:13:38,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 05:13:38,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-09-25 05:13:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 390. [2020-09-25 05:13:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 05:13:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 422 transitions. [2020-09-25 05:13:38,134 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 422 transitions. Word has length 175 [2020-09-25 05:13:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:38,135 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 422 transitions. [2020-09-25 05:13:38,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:13:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 422 transitions. [2020-09-25 05:13:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 05:13:38,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:38,138 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] [2020-09-25 05:13:38,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:13:38,138 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:38,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:38,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1695038909, now seen corresponding path program 1 times [2020-09-25 05:13:38,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:38,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065581041] [2020-09-25 05:13:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 05:13:43,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:13:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:13:43,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:13:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 05:13:43,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 05:13:43,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,498 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:43,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:43,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 05:13:43,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:43,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:43,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:43,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:43,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:43,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:43,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:43,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:43,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:43,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:43,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:43,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:43,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:13:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:43,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:43,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:13:43,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:13:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 05:13:43,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:13:43,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:43,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:13:43,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:13:43,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:13:43,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:13:43,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:13:43,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:13:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:13:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:13:43,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:43,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:13:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:43,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:43,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:43,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 05:13:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:43,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:43,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:43,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:43,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 05:13:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:43,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:43,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:13:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:43,955 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 05:13:43,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065581041] [2020-09-25 05:13:43,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:43,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:13:43,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417652150] [2020-09-25 05:13:43,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:13:43,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:43,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:13:43,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:13:43,960 INFO L87 Difference]: Start difference. First operand 390 states and 422 transitions. Second operand 11 states. [2020-09-25 05:13:44,558 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:46,377 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:46,705 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:13:47,094 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:48,167 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:13:48,561 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 05:13:49,008 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:13:49,335 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:13:49,644 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:13:50,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:50,112 INFO L93 Difference]: Finished difference Result 804 states and 946 transitions. [2020-09-25 05:13:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 05:13:50,113 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 05:13:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:50,118 INFO L225 Difference]: With dead ends: 804 [2020-09-25 05:13:50,118 INFO L226 Difference]: Without dead ends: 529 [2020-09-25 05:13:50,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 05:13:50,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-09-25 05:13:50,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 388. [2020-09-25 05:13:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-09-25 05:13:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 418 transitions. [2020-09-25 05:13:50,172 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 418 transitions. Word has length 199 [2020-09-25 05:13:50,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:50,173 INFO L479 AbstractCegarLoop]: Abstraction has 388 states and 418 transitions. [2020-09-25 05:13:50,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:13:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 418 transitions. [2020-09-25 05:13:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 05:13:50,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:50,177 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:50,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:13:50,177 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:50,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:50,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1169116801, now seen corresponding path program 1 times [2020-09-25 05:13:50,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:50,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298114371] [2020-09-25 05:13:50,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking...