/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:01:05,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:01:05,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:01:05,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:01:05,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:01:05,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:01:05,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:01:05,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:01:05,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:01:05,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:01:05,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:01:05,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:01:05,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:01:05,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:01:05,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:01:05,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:01:05,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:01:05,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:01:05,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:01:05,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:01:05,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:01:05,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:01:05,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:01:05,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:01:05,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:01:05,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:01:05,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:01:05,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:01:05,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:01:05,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:01:05,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:01:05,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:01:05,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:01:05,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:01:05,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:01:05,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:01:05,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:01:05,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:01:05,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:01:05,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:01:05,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:01:05,662 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 [2020-10-14 07:01:05,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:01:05,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:01:05,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:01:05,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:01:05,705 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:01:05,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:01:05,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:01:05,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:01:05,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:01:05,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:01:05,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:01:05,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:01:05,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:01:05,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:01:05,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:01:05,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:01:05,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:01:05,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:01:05,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:01:05,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:01:05,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:01:05,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:01:05,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:01:05,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:01:05,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:01:05,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:01:05,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:01:05,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:01:05,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:01:05,712 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:01:06,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:01:06,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:01:06,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:01:06,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:01:06,046 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:01:06,047 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-10-14 07:01:06,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba7cd82e0/5112cc01d2764b50abab2877a2a1b05a/FLAGe2ca0fb08 [2020-10-14 07:01:06,635 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:01:06,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-10-14 07:01:06,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba7cd82e0/5112cc01d2764b50abab2877a2a1b05a/FLAGe2ca0fb08 [2020-10-14 07:01:06,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba7cd82e0/5112cc01d2764b50abab2877a2a1b05a [2020-10-14 07:01:06,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:01:06,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:01:06,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:01:06,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:01:06,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:01:06,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:01:06" (1/1) ... [2020-10-14 07:01:06,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1689bbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:06, skipping insertion in model container [2020-10-14 07:01:06,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:01:06" (1/1) ... [2020-10-14 07:01:06,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:01:06,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:01:07,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:01:07,474 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:01:07,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:01:07,604 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:01:07,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07 WrapperNode [2020-10-14 07:01:07,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:01:07,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:01:07,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:01:07,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:01:07,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (1/1) ... [2020-10-14 07:01:07,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:01:07,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:01:07,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:01:07,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:01:07,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (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 [2020-10-14 07:01:07,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:01:07,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:01:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:01:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:01:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:01:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:01:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:01:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:01:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:01:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:01:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:01:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:01:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:01:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:01:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:01:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:01:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:01:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-14 07:01:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:01:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:01:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:01:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:01:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:01:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:01:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:01:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:01:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:01:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:01:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:01:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:01:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:01:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:01:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:01:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:01:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:01:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:01:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-14 07:01:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:01:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:01:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:01:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:01:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:01:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:01:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:01:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:01:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:01:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:01:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:01:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:01:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:01:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:01:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:01:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:01:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:01:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:01:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:01:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:01:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:01:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:01:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:01:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:01:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:01:11,042 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:01:11,042 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:01:11,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:01:11 BoogieIcfgContainer [2020-10-14 07:01:11,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:01:11,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:01:11,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:01:11,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:01:11,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:01:06" (1/3) ... [2020-10-14 07:01:11,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f44b061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:01:11, skipping insertion in model container [2020-10-14 07:01:11,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:07" (2/3) ... [2020-10-14 07:01:11,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f44b061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:01:11, skipping insertion in model container [2020-10-14 07:01:11,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:01:11" (3/3) ... [2020-10-14 07:01:11,056 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-10-14 07:01:11,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:01:11,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:01:11,088 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:01:11,114 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:01:11,115 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:01:11,115 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:01:11,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:01:11,115 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:01:11,116 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:01:11,116 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:01:11,116 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:01:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2020-10-14 07:01:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 07:01:11,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:11,151 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] [2020-10-14 07:01:11,152 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:11,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:11,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1875422794, now seen corresponding path program 1 times [2020-10-14 07:01:11,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:11,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754871308] [2020-10-14 07:01:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:11,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:11,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:13,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 07:01:16,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:01:16,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4968 [2020-10-14 07:01:16,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:01:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-14 07:01:16,889 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:16,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:01:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:17,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:17,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:17,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:17,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:17,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:17,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:17,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:17,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:17,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:17,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:17,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:17,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:17,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:17,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:17,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:17,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:17,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:17,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:17,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:01:17,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:17,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:17,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:01:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:17,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:17,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:17,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:17,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:17,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:17,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:17,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:17,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:17,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:01:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:17,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:17,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:17,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:17,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:17,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:17,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:17,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:17,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754871308] [2020-10-14 07:01:17,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:17,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:01:17,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101015622] [2020-10-14 07:01:17,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:01:17,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:17,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:01:17,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:01:17,123 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 3 states. [2020-10-14 07:01:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:18,607 INFO L93 Difference]: Finished difference Result 320 states and 417 transitions. [2020-10-14 07:01:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:01:18,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-14 07:01:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:18,625 INFO L225 Difference]: With dead ends: 320 [2020-10-14 07:01:18,625 INFO L226 Difference]: Without dead ends: 173 [2020-10-14 07:01:18,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:01:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-14 07:01:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 138. [2020-10-14 07:01:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-14 07:01:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2020-10-14 07:01:18,736 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 46 [2020-10-14 07:01:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:18,736 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2020-10-14 07:01:18,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:01:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2020-10-14 07:01:18,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 07:01:18,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:18,740 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] [2020-10-14 07:01:18,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:01:18,741 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:18,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2108875382, now seen corresponding path program 1 times [2020-10-14 07:01:18,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:18,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170745278] [2020-10-14 07:01:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:18,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:18,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:20,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:23,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:23,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:01:23,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:01:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 07:01:23,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:23,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:01:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:01:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,170 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:24,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:01:24,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:24,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:24,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:24,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:24,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:24,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:24,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:24,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:24,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:24,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:24,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:01:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:24,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:24,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:24,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:01:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:24,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:24,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:24,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:24,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:24,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170745278] [2020-10-14 07:01:24,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:24,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:01:24,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547617526] [2020-10-14 07:01:24,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:01:24,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:24,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:01:24,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:01:24,298 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 4 states. [2020-10-14 07:01:24,900 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:25,915 INFO L93 Difference]: Finished difference Result 243 states and 296 transitions. [2020-10-14 07:01:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:01:25,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-14 07:01:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:25,918 INFO L225 Difference]: With dead ends: 243 [2020-10-14 07:01:25,919 INFO L226 Difference]: Without dead ends: 157 [2020-10-14 07:01:25,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:01:25,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-14 07:01:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 129. [2020-10-14 07:01:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 07:01:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2020-10-14 07:01:25,996 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 47 [2020-10-14 07:01:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:25,996 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2020-10-14 07:01:25,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:01:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2020-10-14 07:01:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:01:26,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:26,004 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] [2020-10-14 07:01:26,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:01:26,004 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash -2135499519, now seen corresponding path program 1 times [2020-10-14 07:01:26,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:26,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858290349] [2020-10-14 07:01:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:26,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:26,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:27,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:01:30,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:01:30,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4382 [2020-10-14 07:01:30,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:30,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 07:01:30,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:01:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,688 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:30,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:30,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:01:30,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:30,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:30,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:30,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:30,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:30,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:30,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:30,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:30,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:30,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:30,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:30,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:30,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:01:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:30,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:30,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:30,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:30,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:01:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:30,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:30,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:30,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:30,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:30,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:30,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:30,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:30,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:30,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:30,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858290349] [2020-10-14 07:01:30,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:30,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:01:30,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036640627] [2020-10-14 07:01:30,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:01:30,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:30,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:01:30,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:01:30,791 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 7 states. [2020-10-14 07:01:31,259 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:31,999 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:32,283 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:32,524 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:33,015 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:33,287 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:33,970 INFO L93 Difference]: Finished difference Result 328 states and 417 transitions. [2020-10-14 07:01:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:01:33,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-14 07:01:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:33,977 INFO L225 Difference]: With dead ends: 328 [2020-10-14 07:01:33,978 INFO L226 Difference]: Without dead ends: 223 [2020-10-14 07:01:33,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:01:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-14 07:01:34,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 200. [2020-10-14 07:01:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-14 07:01:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 241 transitions. [2020-10-14 07:01:34,031 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 241 transitions. Word has length 52 [2020-10-14 07:01:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:34,031 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 241 transitions. [2020-10-14 07:01:34,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:01:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 241 transitions. [2020-10-14 07:01:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 07:01:34,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:34,033 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] [2020-10-14 07:01:34,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:01:34,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:34,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1849713391, now seen corresponding path program 1 times [2020-10-14 07:01:34,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:34,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314792790] [2020-10-14 07:01:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:34,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:34,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 07:01:36,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:36,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2052 [2020-10-14 07:01:36,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 07:01:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,375 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:36,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:36,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:01:36,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:36,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:36,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:36,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:36,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:36,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:36,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 07:01:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:36,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:01:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 07:01:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:36,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:36,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:01:36,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:01:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:36,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:01:36,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:01:36,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:36,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:36,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:36,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:36,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:01:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:36,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:36,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:36,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 07:01:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:36,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:36,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:36,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:36,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:36,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:36,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:36,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:36,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:36,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314792790] [2020-10-14 07:01:36,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:36,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:36,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701173465] [2020-10-14 07:01:36,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:36,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:36,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:36,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:36,601 INFO L87 Difference]: Start difference. First operand 200 states and 241 transitions. Second operand 8 states. [2020-10-14 07:01:37,775 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:38,030 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:01:38,278 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:38,525 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:01:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:39,262 INFO L93 Difference]: Finished difference Result 422 states and 538 transitions. [2020-10-14 07:01:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:01:39,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-14 07:01:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:39,270 INFO L225 Difference]: With dead ends: 422 [2020-10-14 07:01:39,270 INFO L226 Difference]: Without dead ends: 246 [2020-10-14 07:01:39,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:01:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-14 07:01:39,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 208. [2020-10-14 07:01:39,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-14 07:01:39,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 249 transitions. [2020-10-14 07:01:39,361 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 249 transitions. Word has length 80 [2020-10-14 07:01:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:39,362 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 249 transitions. [2020-10-14 07:01:39,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:01:39,362 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 249 transitions. [2020-10-14 07:01:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 07:01:39,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:39,365 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] [2020-10-14 07:01:39,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:01:39,366 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:39,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1872345645, now seen corresponding path program 1 times [2020-10-14 07:01:39,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:39,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043122929] [2020-10-14 07:01:39,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:39,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 07:01:41,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:41,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1757 [2020-10-14 07:01:41,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:41,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 07:01:41,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,387 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:41,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:01:41,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:41,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:41,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:41,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:41,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:41,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:41,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:41,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:41,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:41,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 07:01:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:41,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:01:41,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:01:41,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:41,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:41,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:01:41,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:01:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:41,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:01:41,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:41,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:01:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:41,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:01:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:41,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:41,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:01:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:41,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:41,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 07:01:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:41,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:41,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:41,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:41,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:41,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:41,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:41,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:41,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043122929] [2020-10-14 07:01:41,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:41,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:01:41,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212206378] [2020-10-14 07:01:41,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:01:41,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:41,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:01:41,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:01:41,608 INFO L87 Difference]: Start difference. First operand 208 states and 249 transitions. Second operand 7 states. [2020-10-14 07:01:42,605 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:42,869 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:43,116 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:43,877 INFO L93 Difference]: Finished difference Result 437 states and 564 transitions. [2020-10-14 07:01:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:01:43,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-14 07:01:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:43,882 INFO L225 Difference]: With dead ends: 437 [2020-10-14 07:01:43,882 INFO L226 Difference]: Without dead ends: 253 [2020-10-14 07:01:43,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:01:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-14 07:01:43,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 212. [2020-10-14 07:01:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-14 07:01:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 253 transitions. [2020-10-14 07:01:43,934 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 253 transitions. Word has length 80 [2020-10-14 07:01:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:43,935 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 253 transitions. [2020-10-14 07:01:43,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:01:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 253 transitions. [2020-10-14 07:01:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 07:01:43,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:43,937 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] [2020-10-14 07:01:43,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:01:43,937 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:43,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1397129652, now seen corresponding path program 1 times [2020-10-14 07:01:43,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:43,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799534829] [2020-10-14 07:01:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:44,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 07:01:45,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:45,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1560 [2020-10-14 07:01:45,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:01:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:01:45,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,766 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:45,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 07:01:45,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:01:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:45,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:45,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:45,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:45,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:45,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:45,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 07:01:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:45,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:01:45,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:01:45,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:45,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:45,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:45,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:45,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:45,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:01:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:45,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:45,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 07:01:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:45,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799534829] [2020-10-14 07:01:45,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:45,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:45,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737135981] [2020-10-14 07:01:45,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:45,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:45,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:45,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:45,959 INFO L87 Difference]: Start difference. First operand 212 states and 253 transitions. Second operand 8 states. [2020-10-14 07:01:46,390 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:47,115 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:01:47,399 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:47,658 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:47,908 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:48,244 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:49,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:49,812 INFO L93 Difference]: Finished difference Result 639 states and 826 transitions. [2020-10-14 07:01:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:01:49,813 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-14 07:01:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:49,817 INFO L225 Difference]: With dead ends: 639 [2020-10-14 07:01:49,817 INFO L226 Difference]: Without dead ends: 451 [2020-10-14 07:01:49,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:01:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-10-14 07:01:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 385. [2020-10-14 07:01:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-14 07:01:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 465 transitions. [2020-10-14 07:01:49,877 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 465 transitions. Word has length 80 [2020-10-14 07:01:49,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:49,878 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 465 transitions. [2020-10-14 07:01:49,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:01:49,878 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 465 transitions. [2020-10-14 07:01:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:01:49,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:49,879 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] [2020-10-14 07:01:49,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:01:49,880 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:49,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1064510728, now seen corresponding path program 1 times [2020-10-14 07:01:49,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:49,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309507498] [2020-10-14 07:01:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:49,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:01:50,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-14 07:01:50,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:50,609 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:50,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 07:01:50,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:01:50,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:50,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:50,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:50,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:50,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:50,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:50,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:50,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 07:01:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:50,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 07:01:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:50,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:01:50,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:01:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:01:50,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:01:50,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:01:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:50,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:01:50,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:01:50,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:50,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:01:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:50,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:01:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:50,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:01:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:50,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309507498] [2020-10-14 07:01:50,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:50,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:01:50,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750566464] [2020-10-14 07:01:50,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:01:50,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:50,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:01:50,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:01:50,900 INFO L87 Difference]: Start difference. First operand 385 states and 465 transitions. Second operand 7 states. [2020-10-14 07:01:51,345 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:51,880 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:54,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:54,399 INFO L93 Difference]: Finished difference Result 1261 states and 1691 transitions. [2020-10-14 07:01:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:01:54,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-14 07:01:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:54,445 INFO L225 Difference]: With dead ends: 1261 [2020-10-14 07:01:54,446 INFO L226 Difference]: Without dead ends: 900 [2020-10-14 07:01:54,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:01:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-10-14 07:01:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 765. [2020-10-14 07:01:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-10-14 07:01:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 933 transitions. [2020-10-14 07:01:54,607 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 933 transitions. Word has length 84 [2020-10-14 07:01:54,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:54,608 INFO L479 AbstractCegarLoop]: Abstraction has 765 states and 933 transitions. [2020-10-14 07:01:54,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:01:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 933 transitions. [2020-10-14 07:01:54,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 07:01:54,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:54,613 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] [2020-10-14 07:01:54,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:01:54,614 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:54,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:54,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1546821858, now seen corresponding path program 1 times [2020-10-14 07:01:54,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:54,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437070966] [2020-10-14 07:01:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:01:54,652 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:01:54,652 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:01:54,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:01:54,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:01:54 BoogieIcfgContainer [2020-10-14 07:01:54,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:01:54,702 INFO L168 Benchmark]: Toolchain (without parser) took 47804.93 ms. Allocated memory was 145.8 MB in the beginning and 745.0 MB in the end (delta: 599.3 MB). Free memory was 100.8 MB in the beginning and 596.6 MB in the end (delta: -495.8 MB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:54,703 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:01:54,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.23 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 169.0 MB in the end (delta: -68.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:54,713 INFO L168 Benchmark]: Boogie Preprocessor took 117.52 ms. Allocated memory is still 202.4 MB. Free memory was 169.0 MB in the beginning and 165.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:54,717 INFO L168 Benchmark]: RCFGBuilder took 3324.35 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.0 MB in the beginning and 193.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:54,717 INFO L168 Benchmark]: TraceAbstraction took 43648.19 ms. Allocated memory was 235.4 MB in the beginning and 745.0 MB in the end (delta: 509.6 MB). Free memory was 193.6 MB in the beginning and 596.6 MB in the end (delta: -403.0 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:54,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.23 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 169.0 MB in the end (delta: -68.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.52 ms. Allocated memory is still 202.4 MB. Free memory was 169.0 MB in the beginning and 165.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3324.35 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.0 MB in the beginning and 193.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43648.19 ms. Allocated memory was 235.4 MB in the beginning and 745.0 MB in the end (delta: 509.6 MB). Free memory was 193.6 MB in the beginning and 596.6 MB in the end (delta: -403.0 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 383]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L458] int cleanupTimeShifts = 4; [L752] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int retValue_acc ; [L535] int tmp ; [L539] FCALL select_helpers() [L540] FCALL select_features() [L541] CALL, EXPR valid_product() [L975] int retValue_acc ; [L978] retValue_acc = 1 [L979] return (retValue_acc); [L541] RET, EXPR valid_product() [L541] tmp = valid_product() [L543] COND TRUE \read(tmp) [L545] FCALL setup() [L546] CALL runTest() [L525] CALL test() [L390] int splverifierCounter ; [L391] int tmp ; [L392] int tmp___0 ; [L393] int tmp___1 ; [L394] int tmp___2 ; [L397] splverifierCounter = 0 [L399] COND TRUE 1 [L401] COND TRUE splverifierCounter < 4 [L407] tmp = __VERIFIER_nondet_int() [L409] COND TRUE \read(tmp) [L411] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L411] RET waterRise() [L417] tmp___0 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___0) [L421] CALL changeMethaneLevel() [L78] COND FALSE !(\read(methaneLevelCritical)) [L81] methaneLevelCritical = 1 [L421] RET changeMethaneLevel() [L427] tmp___2 = __VERIFIER_nondet_int() [L429] COND FALSE !(\read(tmp___2)) [L435] tmp___1 = __VERIFIER_nondet_int() [L437] COND FALSE !(\read(tmp___1)) [L446] CALL timeShift() [L166] COND FALSE !(\read(pumpRunning)) [L173] COND TRUE \read(systemActive) [L175] CALL processEnvironment() [L221] int tmp ; [L224] COND FALSE !(\read(pumpRunning)) [L239] CALL processEnvironment__wrappee__highWaterSensor() [L195] int tmp ; [L198] COND TRUE ! pumpRunning [L200] CALL, EXPR isHighWaterLevel() [L318] int retValue_acc ; [L319] int tmp ; [L320] int tmp___0 ; [L324] CALL, EXPR isHighWaterSensorDry() [L128] int retValue_acc ; [L131] COND FALSE !(waterLevel < 2) [L135] retValue_acc = 0 [L136] return (retValue_acc); [L324] RET, EXPR isHighWaterSensorDry() [L324] tmp = isHighWaterSensorDry() [L326] COND FALSE !(\read(tmp)) [L329] tmp___0 = 1 [L331] retValue_acc = tmp___0 [L332] return (retValue_acc); [L200] RET, EXPR isHighWaterLevel() [L200] tmp = isHighWaterLevel() [L202] COND TRUE \read(tmp) [L204] CALL activatePump() [L249] pumpRunning = 1 [L204] RET activatePump() [L239] RET processEnvironment__wrappee__highWaterSensor() [L175] RET processEnvironment() [L181] CALL __utac_acc__Specification1_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L563] RET, EXPR isMethaneLevelCritical() [L563] tmp = isMethaneLevelCritical() [L565] COND TRUE \read(tmp) [L567] CALL, EXPR isPumpRunning() [L273] int retValue_acc ; [L276] retValue_acc = pumpRunning [L277] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) [L571] CALL __automaton_fail() [L383] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 898 SDtfs, 1313 SDslu, 843 SDs, 0 SdLazy, 3550 SolverSat, 812 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 157 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=765occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 366 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 134840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...