/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:40:50,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:40:50,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:40:50,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:40:50,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:40:50,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:40:50,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:40:50,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:40:50,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:40:50,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:40:50,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:40:50,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:40:50,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:40:50,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:40:50,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:40:50,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:40:50,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:40:50,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:40:50,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:40:50,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:40:50,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:40:50,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:40:50,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:40:50,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:40:50,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:40:50,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:40:50,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:40:50,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:40:50,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:40:50,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:40:50,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:40:50,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:40:50,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:40:50,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:40:50,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:40:50,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:40:50,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:40:50,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:40:50,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:40:50,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:40:50,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:40:50,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:40:50,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:40:50,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:40:50,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:40:50,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:40:50,797 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:40:50,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:40:50,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:40:50,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:40:50,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:40:50,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:40:50,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:40:50,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:40:50,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:40:50,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:40:50,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:40:50,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:40:50,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:40:50,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:40:50,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:40:50,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:40:50,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:40:50,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:50,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:40:50,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:40:50,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:40:50,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:40:50,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:40:50,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:40:50,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:40:50,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:40:51,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:40:51,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:40:51,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:40:51,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:40:51,277 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:40:51,278 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 15:40:51,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28d046345/413ecea6361541c4897dde3293dfc5c6/FLAG33ceef8d4 [2020-09-24 15:40:51,995 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:40:51,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 15:40:52,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28d046345/413ecea6361541c4897dde3293dfc5c6/FLAG33ceef8d4 [2020-09-24 15:40:52,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28d046345/413ecea6361541c4897dde3293dfc5c6 [2020-09-24 15:40:52,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:40:52,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:40:52,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:52,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:40:52,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:40:52,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:52,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52, skipping insertion in model container [2020-09-24 15:40:52,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:52,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:40:52,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:40:52,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:52,811 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:40:52,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:52,951 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:40:52,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52 WrapperNode [2020-09-24 15:40:52,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:52,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:40:52,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:40:52,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:40:52,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:52,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:52,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:52,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:53,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:53,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:53,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... [2020-09-24 15:40:53,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:40:53,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:40:53,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:40:53,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:40:53,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:40:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:40:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:40:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:40:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:40:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:40:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:40:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:40:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:40:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:40:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:40:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:40:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:40:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:40:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:40:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:40:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:40:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:40:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:40:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:40:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:40:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:40:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:40:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:40:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:40:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:40:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:40:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:40:53,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:40:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:40:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:40:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:40:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:40:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:40:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:40:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:40:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:40:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:40:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:40:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:40:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:40:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:40:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:40:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:40:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:40:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:40:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:40:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:40:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:40:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:40:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:40:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:40:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:40:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:40:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:40:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:40:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:40:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:40:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:40:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:40:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:40:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:40:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:40:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:40:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:40:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:40:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:40:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:40:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:40:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:40:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:40:54,410 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:40:54,411 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:40:54,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:54 BoogieIcfgContainer [2020-09-24 15:40:54,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:40:54,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:40:54,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:40:54,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:40:54,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:40:52" (1/3) ... [2020-09-24 15:40:54,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc26808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:54, skipping insertion in model container [2020-09-24 15:40:54,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:52" (2/3) ... [2020-09-24 15:40:54,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc26808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:54, skipping insertion in model container [2020-09-24 15:40:54,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:54" (3/3) ... [2020-09-24 15:40:54,429 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-24 15:40:54,441 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:40:54,453 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:40:54,478 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:40:54,515 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:40:54,515 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:40:54,515 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:40:54,515 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:40:54,515 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:40:54,516 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:40:54,516 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:40:54,516 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:40:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-24 15:40:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:40:54,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:54,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:54,570 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:54,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-24 15:40:54,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:54,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846479162] [2020-09-24 15:40:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:54,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:54,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:54,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:54,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:54,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:40:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:40:54,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:40:54,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:54,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,540 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:55,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:55,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:40:55,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:40:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:55,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:40:55,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:55,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:55,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:40:55,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:55,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:55,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:55,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:40:55,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:40:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:55,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:40:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:55,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:55,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846479162] [2020-09-24 15:40:55,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:55,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:40:55,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31053294] [2020-09-24 15:40:55,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:40:55,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:55,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:40:55,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:40:55,857 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-09-24 15:40:57,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:57,269 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-24 15:40:57,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:40:57,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:40:57,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:57,294 INFO L225 Difference]: With dead ends: 448 [2020-09-24 15:40:57,294 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 15:40:57,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:40:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 15:40:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-24 15:40:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-24 15:40:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-24 15:40:57,408 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-24 15:40:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:57,410 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-24 15:40:57,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:40:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-24 15:40:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:40:57,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:57,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:57,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:40:57,416 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1951375081, now seen corresponding path program 1 times [2020-09-24 15:40:57,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:57,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678309719] [2020-09-24 15:40:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:40:57,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:40:57,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:40:57,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:40:57,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:57,856 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:57,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:57,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:57,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:57,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:57,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:57,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,940 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,940 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,941 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:57,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:57,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:40:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:57,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:57,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:57,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:40:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:57,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:57,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:40:57,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:40:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:58,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678309719] [2020-09-24 15:40:58,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:58,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:40:58,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059442809] [2020-09-24 15:40:58,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:40:58,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:58,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:40:58,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:40:58,021 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-24 15:40:58,678 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:40:59,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:59,572 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-24 15:40:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:40:59,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:40:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:59,584 INFO L225 Difference]: With dead ends: 352 [2020-09-24 15:40:59,584 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 15:40:59,586 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 [2020-09-24 15:40:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 15:40:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-24 15:40:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-24 15:40:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-24 15:40:59,627 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-24 15:40:59,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:59,628 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-24 15:40:59,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:40:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-24 15:40:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 15:40:59,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:59,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:59,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:40:59,632 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:59,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:59,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1408786884, now seen corresponding path program 1 times [2020-09-24 15:40:59,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:59,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821107182] [2020-09-24 15:40:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:59,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:40:59,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:40:59,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:40:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:59,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:40:59,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:40:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:40:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:40:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,028 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:00,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,089 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:00,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:41:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:00,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:00,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:41:00,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:41:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:00,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:41:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:00,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:00,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:00,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821107182] [2020-09-24 15:41:00,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:00,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:41:00,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364256659] [2020-09-24 15:41:00,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:41:00,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:00,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:41:00,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:41:00,158 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-24 15:41:00,713 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:02,552 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-24 15:41:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:41:02,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 15:41:02,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:02,563 INFO L225 Difference]: With dead ends: 536 [2020-09-24 15:41:02,563 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 15:41:02,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:02,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 15:41:02,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-24 15:41:02,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-24 15:41:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-24 15:41:02,637 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-24 15:41:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:02,638 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-24 15:41:02,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:41:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-24 15:41:02,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 15:41:02,642 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:02,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:02,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:41:02,642 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:02,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1641209859, now seen corresponding path program 1 times [2020-09-24 15:41:02,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:02,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143165917] [2020-09-24 15:41:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 15:41:02,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:41:02,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:41:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:41:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:41:02,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,117 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,159 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,159 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:03,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:41:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:03,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:03,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,233 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,233 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 15:41:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:03,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:03,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:41:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:03,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:03,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:41:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:03,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:03,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143165917] [2020-09-24 15:41:03,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:03,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:41:03,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028381173] [2020-09-24 15:41:03,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:41:03,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:03,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:41:03,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:41:03,343 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-24 15:41:03,869 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:05,323 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:05,683 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:06,079 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:06,419 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:06,756 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:41:07,092 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:07,399 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:07,857 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:08,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:08,794 INFO L93 Difference]: Finished difference Result 886 states and 1053 transitions. [2020-09-24 15:41:08,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:08,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 15:41:08,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:08,806 INFO L225 Difference]: With dead ends: 886 [2020-09-24 15:41:08,806 INFO L226 Difference]: Without dead ends: 662 [2020-09-24 15:41:08,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-09-24 15:41:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 531. [2020-09-24 15:41:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 15:41:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 590 transitions. [2020-09-24 15:41:08,942 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 590 transitions. Word has length 161 [2020-09-24 15:41:08,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:08,943 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 590 transitions. [2020-09-24 15:41:08,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:41:08,943 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 590 transitions. [2020-09-24 15:41:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:41:08,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:08,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:08,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:41:08,948 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:08,948 INFO L82 PathProgramCache]: Analyzing trace with hash 804799078, now seen corresponding path program 1 times [2020-09-24 15:41:08,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:08,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64344205] [2020-09-24 15:41:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:41:09,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 15:41:09,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:41:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:41:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:41:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,478 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:09,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:09,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:41:09,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:09,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:09,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:09,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:09,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:09,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:09,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:09,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:09,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:09,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:09,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:09,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:09,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,623 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:09,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:09,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:41:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:09,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:09,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:41:09,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:41:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:09,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:09,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:09,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:41:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:09,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:09,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:09,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:09,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64344205] [2020-09-24 15:41:09,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:09,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:09,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678848347] [2020-09-24 15:41:09,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:09,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:09,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:09,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:09,724 INFO L87 Difference]: Start difference. First operand 531 states and 590 transitions. Second operand 10 states. [2020-09-24 15:41:10,260 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:11,545 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:11,881 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:12,209 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:12,562 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:12,881 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:13,512 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:13,814 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:14,196 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:15,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:15,014 INFO L93 Difference]: Finished difference Result 1470 states and 1792 transitions. [2020-09-24 15:41:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:41:15,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-24 15:41:15,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:15,021 INFO L225 Difference]: With dead ends: 1470 [2020-09-24 15:41:15,021 INFO L226 Difference]: Without dead ends: 1049 [2020-09-24 15:41:15,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:41:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-09-24 15:41:15,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 831. [2020-09-24 15:41:15,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-09-24 15:41:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 954 transitions. [2020-09-24 15:41:15,198 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 954 transitions. Word has length 166 [2020-09-24 15:41:15,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:15,199 INFO L479 AbstractCegarLoop]: Abstraction has 831 states and 954 transitions. [2020-09-24 15:41:15,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:15,199 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 954 transitions. [2020-09-24 15:41:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:41:15,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:15,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:15,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:41:15,205 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:15,205 INFO L82 PathProgramCache]: Analyzing trace with hash 633475050, now seen corresponding path program 1 times [2020-09-24 15:41:15,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:15,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079470890] [2020-09-24 15:41:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:41:15,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:15,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 15:41:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,551 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:15,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:15,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:15,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:15,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:15,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:15,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:41:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:15,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:41:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,655 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:15,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:15,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:41:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:15,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:15,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:15,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:41:15,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:15,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:15,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:41:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:15,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:15,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:41:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:15,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:15,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:15,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079470890] [2020-09-24 15:41:15,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:15,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:41:15,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26188394] [2020-09-24 15:41:15,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:41:15,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:15,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:41:15,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:41:15,779 INFO L87 Difference]: Start difference. First operand 831 states and 954 transitions. Second operand 11 states. [2020-09-24 15:41:17,215 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:17,558 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:17,857 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:18,201 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:18,542 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:18,831 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:20,161 INFO L93 Difference]: Finished difference Result 2068 states and 2596 transitions. [2020-09-24 15:41:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:41:20,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 15:41:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:20,170 INFO L225 Difference]: With dead ends: 2068 [2020-09-24 15:41:20,171 INFO L226 Difference]: Without dead ends: 1347 [2020-09-24 15:41:20,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:41:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2020-09-24 15:41:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 869. [2020-09-24 15:41:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-09-24 15:41:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 992 transitions. [2020-09-24 15:41:20,304 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 992 transitions. Word has length 194 [2020-09-24 15:41:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:20,304 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 992 transitions. [2020-09-24 15:41:20,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:41:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 992 transitions. [2020-09-24 15:41:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:41:20,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:20,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:20,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:41:20,311 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:20,311 INFO L82 PathProgramCache]: Analyzing trace with hash -788765814, now seen corresponding path program 1 times [2020-09-24 15:41:20,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:20,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584285324] [2020-09-24 15:41:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:41:20,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -73 [2020-09-24 15:41:20,387 FATAL L256 erpolLogProxyWrapper]: Difference in width: 73 [2020-09-24 15:41:20,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:41:20,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:20,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 15:41:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,685 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:20,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,695 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,696 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:20,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:20,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:20,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:20,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:20,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,757 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:20,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:41:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:20,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:41:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:20,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:20,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:41:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:20,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:20,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:20,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:41:20,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:20,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:20,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:20,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:20,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:41:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:20,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:20,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:41:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:20,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:20,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:20,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:20,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:20,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:20,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:20,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:20,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584285324] [2020-09-24 15:41:20,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:20,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:20,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778115283] [2020-09-24 15:41:20,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:20,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:20,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:20,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:20,923 INFO L87 Difference]: Start difference. First operand 869 states and 992 transitions. Second operand 10 states. [2020-09-24 15:41:22,195 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:22,524 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:22,838 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:23,150 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:23,428 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:24,951 INFO L93 Difference]: Finished difference Result 2150 states and 2731 transitions. [2020-09-24 15:41:24,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:24,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 15:41:24,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:24,960 INFO L225 Difference]: With dead ends: 2150 [2020-09-24 15:41:24,960 INFO L226 Difference]: Without dead ends: 1391 [2020-09-24 15:41:24,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:24,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2020-09-24 15:41:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 893. [2020-09-24 15:41:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2020-09-24 15:41:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1016 transitions. [2020-09-24 15:41:25,078 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1016 transitions. Word has length 194 [2020-09-24 15:41:25,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:25,078 INFO L479 AbstractCegarLoop]: Abstraction has 893 states and 1016 transitions. [2020-09-24 15:41:25,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1016 transitions. [2020-09-24 15:41:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:41:25,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:25,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:25,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:41:25,083 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:25,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:25,083 INFO L82 PathProgramCache]: Analyzing trace with hash -580417043, now seen corresponding path program 1 times [2020-09-24 15:41:25,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:25,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593457587] [2020-09-24 15:41:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:41:25,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:41:25,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:41:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:41:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:41:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,467 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:25,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:25,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:25,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:25,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:25,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:41:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:25,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:25,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:41:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:25,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 15:41:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 15:41:25,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:25,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:25,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,696 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,696 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:25,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:41:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:41:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:25,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:25,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:25,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593457587] [2020-09-24 15:41:25,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:25,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:41:25,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070946914] [2020-09-24 15:41:25,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:41:25,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:25,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:41:25,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:41:25,755 INFO L87 Difference]: Start difference. First operand 893 states and 1016 transitions. Second operand 8 states. [2020-09-24 15:41:26,312 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:26,961 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:30,652 INFO L93 Difference]: Finished difference Result 3379 states and 4329 transitions. [2020-09-24 15:41:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 15:41:30,653 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-09-24 15:41:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:30,667 INFO L225 Difference]: With dead ends: 3379 [2020-09-24 15:41:30,667 INFO L226 Difference]: Without dead ends: 2596 [2020-09-24 15:41:30,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:41:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2020-09-24 15:41:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 1823. [2020-09-24 15:41:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1823 states. [2020-09-24 15:41:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2102 transitions. [2020-09-24 15:41:30,909 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2102 transitions. Word has length 194 [2020-09-24 15:41:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:30,910 INFO L479 AbstractCegarLoop]: Abstraction has 1823 states and 2102 transitions. [2020-09-24 15:41:30,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:41:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2102 transitions. [2020-09-24 15:41:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 15:41:30,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:30,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:30,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:41:30,914 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:30,915 INFO L82 PathProgramCache]: Analyzing trace with hash -2090495192, now seen corresponding path program 1 times [2020-09-24 15:41:30,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:30,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226705451] [2020-09-24 15:41:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:41:30,997 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:41:30,997 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:41:31,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:41:31,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:41:31 BoogieIcfgContainer [2020-09-24 15:41:31,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:41:31,032 INFO L168 Benchmark]: Toolchain (without parser) took 38791.03 ms. Allocated memory was 140.5 MB in the beginning and 798.0 MB in the end (delta: 657.5 MB). Free memory was 101.8 MB in the beginning and 499.7 MB in the end (delta: -397.9 MB). Peak memory consumption was 259.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:31,033 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:41:31,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.82 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 173.8 MB in the end (delta: -72.7 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:31,034 INFO L168 Benchmark]: Boogie Preprocessor took 116.74 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:31,035 INFO L168 Benchmark]: RCFGBuilder took 1348.76 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 169.8 MB in the beginning and 177.1 MB in the end (delta: -7.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:31,036 INFO L168 Benchmark]: TraceAbstraction took 36609.95 ms. Allocated memory was 235.9 MB in the beginning and 798.0 MB in the end (delta: 562.0 MB). Free memory was 177.1 MB in the beginning and 499.7 MB in the end (delta: -322.6 MB). Peak memory consumption was 239.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:31,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.82 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 173.8 MB in the end (delta: -72.7 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.74 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1348.76 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 169.8 MB in the beginning and 177.1 MB in the end (delta: -7.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36609.95 ms. Allocated memory was 235.9 MB in the beginning and 798.0 MB in the end (delta: 562.0 MB). Free memory was 177.1 MB in the beginning and 499.7 MB in the end (delta: -322.6 MB). Peak memory consumption was 239.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L833] int cleanupTimeShifts = 4; [L906] int retValue_acc ; [L907] int tmp ; [L911] FCALL select_helpers() [L912] FCALL select_features() [L913] CALL, EXPR valid_product() [L432] int retValue_acc ; [L435] retValue_acc = 1 [L436] return (retValue_acc); [L913] RET, EXPR valid_product() [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L917] FCALL setup() [L918] CALL runTest() [L900] CALL test() [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 [L344] COND TRUE 1 [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) [L356] CALL waterRise() [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 [L356] RET waterRise() [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) [L366] CALL changeMethaneLevel() [L269] COND FALSE !(\read(methaneLevelCritical)) [L272] methaneLevelCritical = 1 [L366] RET changeMethaneLevel() [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L376] CALL startSystem() [L231] systemActive = 1 [L376] RET startSystem() [L391] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L102] CALL, EXPR isHighWaterLevel() [L194] int retValue_acc ; [L195] int tmp ; [L196] int tmp___0 ; [L200] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND FALSE !(waterLevel < 2) [L326] retValue_acc = 0 [L327] return (retValue_acc); [L200] RET, EXPR isHighWaterSensorDry() [L200] tmp = isHighWaterSensorDry() [L202] COND FALSE !(\read(tmp)) [L205] tmp___0 = 1 [L207] retValue_acc = tmp___0 [L208] return (retValue_acc); [L102] RET, EXPR isHighWaterLevel() [L102] tmp = isHighWaterLevel() [L104] COND TRUE \read(tmp) [L106] CALL activatePump() [L125] pumpRunning = 1 [L106] RET activatePump() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification1_spec__1() [L808] int tmp ; [L809] int tmp___0 ; [L813] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L813] RET, EXPR isMethaneLevelCritical() [L813] tmp = isMethaneLevelCritical() [L815] COND TRUE \read(tmp) [L817] CALL, EXPR isPumpRunning() [L149] int retValue_acc ; [L152] retValue_acc = pumpRunning [L153] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] tmp___0 = isPumpRunning() [L819] COND TRUE \read(tmp___0) [L821] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 616 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 29.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1863 SDtfs, 4149 SDslu, 3061 SDs, 0 SdLazy, 6522 SolverSat, 1341 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1823occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 2257 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1549 NumberOfCodeBlocks, 1549 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1342 ConstructedInterpolants, 0 QuantifiedInterpolants, 590658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...