/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=0.6 --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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:20:39,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:20:39,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:20:39,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:20:39,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:20:39,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:20:39,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:20:39,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:20:39,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:20:39,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:20:39,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:20:39,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:20:39,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:20:39,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:20:39,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:20:39,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:20:39,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:20:39,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:20:39,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:20:39,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:20:39,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:20:39,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:20:39,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:20:39,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:20:39,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:20:39,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:20:39,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:20:39,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:20:39,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:20:39,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:20:39,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:20:39,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:20:39,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:20:39,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:20:39,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:20:39,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:20:39,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:20:39,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:20:39,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:20:39,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:20:39,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:20:39,770 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 06:20:39,796 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:20:39,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:20:39,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:20:39,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:20:39,798 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:20:39,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:20:39,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:20:39,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:20:39,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:20:39,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:20:39,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:20:39,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:20:39,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:20:39,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:20:39,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:20:39,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:20:39,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:20:39,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:20:39,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:20:39,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:20:39,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:20:39,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:20:39,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:20:39,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:20:39,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:20:39,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:20:39,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:20:39,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:20:39,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:20:39,806 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:20:40,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:20:40,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:20:40,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:20:40,351 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:20:40,352 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:20:40,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product31.cil.c [2020-09-25 06:20:40,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e736a8910/4b20e94e7722446dbbc02904d5461fb3/FLAG647568909 [2020-09-25 06:20:41,100 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:20:41,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product31.cil.c [2020-09-25 06:20:41,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e736a8910/4b20e94e7722446dbbc02904d5461fb3/FLAG647568909 [2020-09-25 06:20:41,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e736a8910/4b20e94e7722446dbbc02904d5461fb3 [2020-09-25 06:20:41,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:20:41,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:20:41,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:41,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:20:41,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:20:41,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:41" (1/1) ... [2020-09-25 06:20:41,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:41, skipping insertion in model container [2020-09-25 06:20:41,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:41" (1/1) ... [2020-09-25 06:20:41,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:20:41,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:20:41,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:41,907 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:20:42,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:42,171 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:20:42,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42 WrapperNode [2020-09-25 06:20:42,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:42,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:20:42,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:20:42,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:20:42,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:20:42,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:20:42,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:20:42,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:20:42,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (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 06:20:42,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:20:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:20:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:20:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:20:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:20:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:20:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:20:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:20:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:20:42,361 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:20:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:20:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:20:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:20:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:20:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:20:42,363 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:20:42,363 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:20:42,363 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:20:42,363 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:20:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:20:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:20:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:20:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:20:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:20:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:20:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:20:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:20:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:20:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:20:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:20:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:20:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:20:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:20:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:20:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:20:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:20:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:20:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:20:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:20:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:20:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:20:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:20:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:20:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:20:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:20:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:20:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:20:42,369 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:20:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:20:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:20:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:20:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:20:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:20:42,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:20:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:20:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:20:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:20:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:20:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:20:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:20:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:20:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:20:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:20:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:20:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:20:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:20:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:20:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:20:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:20:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:20:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:20:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:20:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:20:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:20:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:20:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:20:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:20:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:20:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:20:43,620 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:20:43,620 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:20:43,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:43 BoogieIcfgContainer [2020-09-25 06:20:43,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:20:43,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:20:43,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:20:43,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:20:43,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:20:41" (1/3) ... [2020-09-25 06:20:43,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bae648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:43, skipping insertion in model container [2020-09-25 06:20:43,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (2/3) ... [2020-09-25 06:20:43,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bae648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:43, skipping insertion in model container [2020-09-25 06:20:43,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:43" (3/3) ... [2020-09-25 06:20:43,640 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2020-09-25 06:20:43,653 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:20:43,666 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:20:43,691 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:20:43,732 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:20:43,732 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:20:43,732 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:20:43,733 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:20:43,733 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:20:43,733 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:20:43,733 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:20:43,733 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:20:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-25 06:20:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:20:43,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:43,789 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 06:20:43,790 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash -154587198, now seen corresponding path program 1 times [2020-09-25 06:20:43,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:43,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609443715] [2020-09-25 06:20:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:44,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:44,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:46,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:49,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:20:49,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:20:49,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5125 [2020-09-25 06:20:49,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:49,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:49,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:20:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:49,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 06:20:49,816 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:49,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:49,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:49,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 06:20:49,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:49,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:49,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:50,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:50,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:50,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:50,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:50,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:50,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:20:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:50,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:50,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:20:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:50,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:50,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,133 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 06:20:50,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609443715] [2020-09-25 06:20:50,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:50,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:20:50,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519824373] [2020-09-25 06:20:50,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:20:50,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:50,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:20:50,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:50,167 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 4 states. [2020-09-25 06:20:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:51,589 INFO L93 Difference]: Finished difference Result 483 states and 578 transitions. [2020-09-25 06:20:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:20:51,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:20:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:51,612 INFO L225 Difference]: With dead ends: 483 [2020-09-25 06:20:51,612 INFO L226 Difference]: Without dead ends: 309 [2020-09-25 06:20:51,619 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 06:20:51,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-25 06:20:51,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 259. [2020-09-25 06:20:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 06:20:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 284 transitions. [2020-09-25 06:20:51,762 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 284 transitions. Word has length 148 [2020-09-25 06:20:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:51,763 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 284 transitions. [2020-09-25 06:20:51,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:20:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 284 transitions. [2020-09-25 06:20:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:20:51,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:51,776 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 06:20:51,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:20:51,776 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:51,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:51,777 INFO L82 PathProgramCache]: Analyzing trace with hash 378109291, now seen corresponding path program 1 times [2020-09-25 06:20:51,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:51,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835428562] [2020-09-25 06:20:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:51,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:53,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:56,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:56,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:56,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:20:56,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:20:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:20:56,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:56,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:56,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:56,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:20:56,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:20:56,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,149 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:57,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 06:20:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:57,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:57,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:57,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:57,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:57,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:57,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:20:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:57,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:57,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:57,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:20:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:57,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:20:57,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835428562] [2020-09-25 06:20:57,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:57,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:57,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136777791] [2020-09-25 06:20:57,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:57,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:57,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:57,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:57,452 INFO L87 Difference]: Start difference. First operand 259 states and 284 transitions. Second operand 5 states. [2020-09-25 06:20:58,095 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:59,313 INFO L93 Difference]: Finished difference Result 406 states and 465 transitions. [2020-09-25 06:20:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:20:59,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:20:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:59,319 INFO L225 Difference]: With dead ends: 406 [2020-09-25 06:20:59,320 INFO L226 Difference]: Without dead ends: 298 [2020-09-25 06:20:59,322 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 06:20:59,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-25 06:20:59,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 249. [2020-09-25 06:20:59,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 06:20:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 271 transitions. [2020-09-25 06:20:59,373 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 271 transitions. Word has length 149 [2020-09-25 06:20:59,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:59,374 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 271 transitions. [2020-09-25 06:20:59,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:20:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 271 transitions. [2020-09-25 06:20:59,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 06:20:59,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:59,378 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] [2020-09-25 06:20:59,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:20:59,378 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:59,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:59,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1617288806, now seen corresponding path program 1 times [2020-09-25 06:20:59,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:59,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236788535] [2020-09-25 06:20:59,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:00,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:04,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 06:21:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:21:04,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:04,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 06:21:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:21:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:04,816 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:04,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:05,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 06:21:05,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:21:05,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:05,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:21:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:05,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:05,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:21:05,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:05,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:05,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:05,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:05,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:21:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:05,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:05,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:21:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:21:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:05,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 06:21:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:05,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,265 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 06:21:05,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236788535] [2020-09-25 06:21:05,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:05,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:05,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984470413] [2020-09-25 06:21:05,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:05,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:05,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:05,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:05,269 INFO L87 Difference]: Start difference. First operand 249 states and 271 transitions. Second operand 6 states. [2020-09-25 06:21:06,003 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:06,944 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:08,784 INFO L93 Difference]: Finished difference Result 662 states and 776 transitions. [2020-09-25 06:21:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:21:08,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 06:21:08,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:08,792 INFO L225 Difference]: With dead ends: 662 [2020-09-25 06:21:08,792 INFO L226 Difference]: Without dead ends: 528 [2020-09-25 06:21:08,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:21:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-09-25 06:21:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 451. [2020-09-25 06:21:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-25 06:21:08,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 510 transitions. [2020-09-25 06:21:08,947 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 510 transitions. Word has length 158 [2020-09-25 06:21:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:08,949 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 510 transitions. [2020-09-25 06:21:08,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:08,949 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 510 transitions. [2020-09-25 06:21:08,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:21:08,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:08,961 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] [2020-09-25 06:21:08,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:21:08,961 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1934075586, now seen corresponding path program 1 times [2020-09-25 06:21:08,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:08,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690780443] [2020-09-25 06:21:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:09,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:09,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:21:14,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:14,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:21:14,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:21:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:21:14,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,344 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:14,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:14,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 06:21:14,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:14,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:14,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:14,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:14,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:14,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:14,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:14,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:21:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:21:14,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:14,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:21:14,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:21:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:14,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 06:21:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:14,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:14,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,629 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 06:21:14,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690780443] [2020-09-25 06:21:14,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:14,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:14,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598797243] [2020-09-25 06:21:14,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:14,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:14,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:14,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:14,632 INFO L87 Difference]: Start difference. First operand 451 states and 510 transitions. Second operand 6 states. [2020-09-25 06:21:15,162 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:17,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:17,658 INFO L93 Difference]: Finished difference Result 1030 states and 1290 transitions. [2020-09-25 06:21:17,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:21:17,658 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 06:21:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:17,665 INFO L225 Difference]: With dead ends: 1030 [2020-09-25 06:21:17,666 INFO L226 Difference]: Without dead ends: 1027 [2020-09-25 06:21:17,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:17,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2020-09-25 06:21:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 793. [2020-09-25 06:21:17,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2020-09-25 06:21:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 917 transitions. [2020-09-25 06:21:17,795 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 917 transitions. Word has length 167 [2020-09-25 06:21:17,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:17,795 INFO L479 AbstractCegarLoop]: Abstraction has 793 states and 917 transitions. [2020-09-25 06:21:17,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:17,796 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 917 transitions. [2020-09-25 06:21:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 06:21:17,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:17,801 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:21:17,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:21:17,802 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:17,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:17,802 INFO L82 PathProgramCache]: Analyzing trace with hash -487460970, now seen corresponding path program 1 times [2020-09-25 06:21:17,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:17,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347177194] [2020-09-25 06:21:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:21,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:22,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:22,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 06:21:22,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:21:22,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:22,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:21:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:21:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,166 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:23,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:23,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 06:21:23,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:23,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:21:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:23,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:21:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:21:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:21:23,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:21:23,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 06:21:23,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:21:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:21:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:21:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:23,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:21:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:21:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 06:21:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:23,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 06:21:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 06:21:23,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347177194] [2020-09-25 06:21:23,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:21:23,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 06:21:23,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413111972] [2020-09-25 06:21:23,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 06:21:23,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:23,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 06:21:23,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:21:23,758 INFO L87 Difference]: Start difference. First operand 793 states and 917 transitions. Second operand 14 states. [2020-09-25 06:21:24,335 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:25,837 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:26,183 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:21:26,568 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:26,888 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:21:27,217 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:27,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:27,580 INFO L93 Difference]: Finished difference Result 1072 states and 1292 transitions. [2020-09-25 06:21:27,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:21:27,581 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 213 [2020-09-25 06:21:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:27,581 INFO L225 Difference]: With dead ends: 1072 [2020-09-25 06:21:27,582 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:21:27,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-09-25 06:21:27,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:21:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:21:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:21:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:21:27,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2020-09-25 06:21:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:27,587 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:21:27,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 06:21:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:21:27,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:21:27,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:21:27,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:21:27,800 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:27,977 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:28,145 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:28,309 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:28,475 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:28,651 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:28,818 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:28,989 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:29,361 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-25 06:21:29,782 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 190