/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --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_spec3_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:14:05,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:14:05,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:14:05,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:14:05,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:14:05,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:14:05,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:14:05,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:14:05,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:14:05,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:14:05,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:14:05,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:14:05,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:14:05,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:14:05,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:14:05,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:14:05,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:14:05,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:14:05,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:14:05,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:14:05,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:14:05,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:14:05,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:14:05,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:14:05,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:14:05,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:14:05,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:14:05,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:14:05,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:14:05,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:14:05,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:14:05,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:14:05,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:14:05,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:14:05,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:14:05,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:14:05,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:14:05,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:14:05,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:14:05,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:14:05,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:14:05,710 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 20:14:05,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:14:05,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:14:05,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:14:05,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:14:05,739 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:14:05,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:14:05,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:14:05,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:14:05,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:14:05,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:14:05,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:14:05,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:14:05,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:14:05,741 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:14:05,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:14:05,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:14:05,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:14:05,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:14:05,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:14:05,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:14:05,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:14:05,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:14:05,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:14:05,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:14:05,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:14:05,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:14:05,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:14:05,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:14:05,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:14:05,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:14:06,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:14:06,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:14:06,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:14:06,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:14:06,227 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:14:06,229 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-09-24 20:14:06,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a43ebe41/68ecb29d7a8d4552a3ab307b7dda1087/FLAG29782bc0a [2020-09-24 20:14:06,903 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:14:06,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-09-24 20:14:06,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a43ebe41/68ecb29d7a8d4552a3ab307b7dda1087/FLAG29782bc0a [2020-09-24 20:14:07,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a43ebe41/68ecb29d7a8d4552a3ab307b7dda1087 [2020-09-24 20:14:07,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:14:07,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:14:07,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:14:07,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:14:07,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:14:07,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:07,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07, skipping insertion in model container [2020-09-24 20:14:07,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:07,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:14:07,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:14:07,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:14:07,662 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:14:07,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:14:07,963 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:14:07,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07 WrapperNode [2020-09-24 20:14:07,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:14:07,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:14:07,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:14:07,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:14:07,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:07,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:08,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:08,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:08,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:08,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:08,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... [2020-09-24 20:14:08,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:14:08,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:14:08,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:14:08,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:14:08,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:14:08,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:14:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:14:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:14:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:14:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:14:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:14:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:14:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:14:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 20:14:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:14:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:14:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:14:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:14:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:14:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:14:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:14:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:14:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:14:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:14:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:14:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:14:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:14:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:14:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:14:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:14:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:14:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:14:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:14:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:14:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:14:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:14:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:14:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:14:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 20:14:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:14:08,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:14:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:14:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:14:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:14:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:14:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:14:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:14:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:14:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:14:09,333 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:14:09,333 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:14:09,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:09 BoogieIcfgContainer [2020-09-24 20:14:09,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:14:09,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:14:09,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:14:09,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:14:09,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:14:07" (1/3) ... [2020-09-24 20:14:09,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f874ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:09, skipping insertion in model container [2020-09-24 20:14:09,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:07" (2/3) ... [2020-09-24 20:14:09,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f874ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:09, skipping insertion in model container [2020-09-24 20:14:09,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:09" (3/3) ... [2020-09-24 20:14:09,354 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2020-09-24 20:14:09,366 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:14:09,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:14:09,402 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:14:09,432 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:14:09,432 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:14:09,432 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:14:09,433 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:14:09,433 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:14:09,433 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:14:09,433 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:14:09,433 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:14:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states. [2020-09-24 20:14:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 20:14:09,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:09,484 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] [2020-09-24 20:14:09,485 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:09,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:09,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1143611039, now seen corresponding path program 1 times [2020-09-24 20:14:09,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:09,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605904849] [2020-09-24 20:14:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:10,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:10,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:10,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:14,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:14,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 20:14:14,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:14:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4342 [2020-09-24 20:14:14,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:14:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:14:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 20:14:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:14:14,680 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:14,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:14,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:15,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-24 20:14:15,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:15,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:14:15,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:15,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:14:15,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:15,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:14:15,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:15,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:15,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:14:15,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:15,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:15,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:14:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:15,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:15,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:15,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:15,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:14:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:15,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:14:15,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:15,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:15,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 20:14:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:15,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:15,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:15,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:15,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:15,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:15,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:15,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:15,340 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 20:14:15,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605904849] [2020-09-24 20:14:15,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:15,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:14:15,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687832837] [2020-09-24 20:14:15,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:14:15,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:15,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:14:15,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:14:15,388 INFO L87 Difference]: Start difference. First operand 343 states. Second operand 8 states. [2020-09-24 20:14:16,239 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:17,996 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:18,326 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:18,770 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:19,188 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:19,524 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:20,439 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:20,781 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:22,620 INFO L93 Difference]: Finished difference Result 748 states and 940 transitions. [2020-09-24 20:14:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:14:22,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 20:14:22,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:22,653 INFO L225 Difference]: With dead ends: 748 [2020-09-24 20:14:22,654 INFO L226 Difference]: Without dead ends: 499 [2020-09-24 20:14:22,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:14:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-24 20:14:22,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 448. [2020-09-24 20:14:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-09-24 20:14:22,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 508 transitions. [2020-09-24 20:14:22,837 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 508 transitions. Word has length 153 [2020-09-24 20:14:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:22,838 INFO L479 AbstractCegarLoop]: Abstraction has 448 states and 508 transitions. [2020-09-24 20:14:22,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:14:22,838 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 508 transitions. [2020-09-24 20:14:22,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 20:14:22,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:22,846 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] [2020-09-24 20:14:22,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:14:22,847 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:22,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:22,848 INFO L82 PathProgramCache]: Analyzing trace with hash -799313326, now seen corresponding path program 1 times [2020-09-24 20:14:22,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:22,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11596428] [2020-09-24 20:14:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:22,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:23,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:23,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 20:14:23,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-24 20:14:23,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:14:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:14:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:23,601 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:23,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:23,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:23,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-24 20:14:23,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:14:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:24,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:24,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:24,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:24,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:24,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:24,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:24,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:24,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:24,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:24,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:14:24,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:24,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:24,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:24,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:24,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:24,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:24,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:24,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:24,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:14:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:24,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:14:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:24,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:24,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:24,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:24,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 20:14:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:24,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:24,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:24,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:14:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:24,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:24,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:24,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:24,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:24,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:24,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:24,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:24,143 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 20:14:24,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11596428] [2020-09-24 20:14:24,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:24,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:14:24,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19899192] [2020-09-24 20:14:24,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:14:24,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:24,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:14:24,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:14:24,148 INFO L87 Difference]: Start difference. First operand 448 states and 508 transitions. Second operand 5 states. [2020-09-24 20:14:24,672 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:25,999 INFO L93 Difference]: Finished difference Result 868 states and 1048 transitions. [2020-09-24 20:14:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:14:26,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-24 20:14:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:26,014 INFO L225 Difference]: With dead ends: 868 [2020-09-24 20:14:26,014 INFO L226 Difference]: Without dead ends: 530 [2020-09-24 20:14:26,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:14:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-09-24 20:14:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 448. [2020-09-24 20:14:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-09-24 20:14:26,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 506 transitions. [2020-09-24 20:14:26,108 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 506 transitions. Word has length 168 [2020-09-24 20:14:26,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:26,109 INFO L479 AbstractCegarLoop]: Abstraction has 448 states and 506 transitions. [2020-09-24 20:14:26,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:14:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 506 transitions. [2020-09-24 20:14:26,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 20:14:26,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:26,115 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] [2020-09-24 20:14:26,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:14:26,115 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:26,116 INFO L82 PathProgramCache]: Analyzing trace with hash -950227871, now seen corresponding path program 1 times [2020-09-24 20:14:26,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:26,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815532241] [2020-09-24 20:14:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:26,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:26,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:26,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:26,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-24 20:14:31,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:14:31,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 20:14:31,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:14:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:14:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:14:31,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,538 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:31,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:31,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 20:14:31,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:31,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:14:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:31,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:31,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:31,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:31,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:31,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:31,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:31,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:31,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:31,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:31,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:31,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:14:31,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:31,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:31,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:31,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:31,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:31,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:14:31,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:31,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:31,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:14:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 20:14:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:14:31,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:14:31,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:14:31,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:14:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:14:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:14:31,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:31,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:31,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:31,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:14:31,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:14:31,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:14:31,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:14:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:14:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:14:31,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:31,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:32,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:32,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:32,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:14:32,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:32,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:14:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:14:32,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:32,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:32,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:32,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:32,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:32,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:32,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:14:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:32,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:32,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:32,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:32,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:32,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:32,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 20:14:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:32,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:32,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:32,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:32,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 20:14:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:32,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:32,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:32,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:32,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:32,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:32,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:32,082 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 20:14:32,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815532241] [2020-09-24 20:14:32,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:32,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:14:32,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932117695] [2020-09-24 20:14:32,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:14:32,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:32,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:14:32,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:14:32,085 INFO L87 Difference]: Start difference. First operand 448 states and 506 transitions. Second operand 7 states. [2020-09-24 20:14:32,639 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:34,306 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:36,236 INFO L93 Difference]: Finished difference Result 1221 states and 1498 transitions. [2020-09-24 20:14:36,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 20:14:36,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-09-24 20:14:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:36,252 INFO L225 Difference]: With dead ends: 1221 [2020-09-24 20:14:36,252 INFO L226 Difference]: Without dead ends: 883 [2020-09-24 20:14:36,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:14:36,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-09-24 20:14:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 724. [2020-09-24 20:14:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-09-24 20:14:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 819 transitions. [2020-09-24 20:14:36,355 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 819 transitions. Word has length 186 [2020-09-24 20:14:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:36,356 INFO L479 AbstractCegarLoop]: Abstraction has 724 states and 819 transitions. [2020-09-24 20:14:36,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:14:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 819 transitions. [2020-09-24 20:14:36,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 20:14:36,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:36,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:14:36,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:14:36,361 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:36,361 INFO L82 PathProgramCache]: Analyzing trace with hash -54966158, now seen corresponding path program 1 times [2020-09-24 20:14:36,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:36,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94497000] [2020-09-24 20:14:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:36,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-24 20:14:37,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 788 [2020-09-24 20:14:37,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 20:14:37,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:14:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:37,530 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:37,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:37,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 20:14:37,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:37,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:14:37,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:37,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:37,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:14:37,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:37,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:37,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:37,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:37,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:37,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:37,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 20:14:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 20:14:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 20:14:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:14:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:14:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 20:14:37,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 20:14:37,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:14:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:14:37,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:14:37,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 20:14:37,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:14:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:14:37,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:14:37,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:14:37,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:14:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:14:37,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:37,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:14:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:37,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:37,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:37,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:14:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:14:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:14:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:38,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:14:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:38,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:38,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:38,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:38,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:38,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 20:14:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:38,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:14:38,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 20:14:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:38,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:38,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:38,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:38,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:38,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:38,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:38,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 20:14:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:38,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:38,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:38,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:38,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:38,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:38,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:38,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 20:14:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:38,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:38,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:38,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:38,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:38,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:38,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:38,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:38,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:38,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:38,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:38,110 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 20:14:38,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94497000] [2020-09-24 20:14:38,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:38,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:14:38,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889763407] [2020-09-24 20:14:38,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:14:38,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:38,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:14:38,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:14:38,113 INFO L87 Difference]: Start difference. First operand 724 states and 819 transitions. Second operand 9 states. [2020-09-24 20:14:39,307 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:39,605 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:14:39,902 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:40,197 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:40,519 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:14:42,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:42,451 INFO L93 Difference]: Finished difference Result 1484 states and 1766 transitions. [2020-09-24 20:14:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:14:42,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2020-09-24 20:14:42,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:42,458 INFO L225 Difference]: With dead ends: 1484 [2020-09-24 20:14:42,458 INFO L226 Difference]: Without dead ends: 870 [2020-09-24 20:14:42,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:14:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2020-09-24 20:14:42,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 723. [2020-09-24 20:14:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-24 20:14:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 817 transitions. [2020-09-24 20:14:42,562 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 817 transitions. Word has length 210 [2020-09-24 20:14:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:42,563 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 817 transitions. [2020-09-24 20:14:42,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:14:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 817 transitions. [2020-09-24 20:14:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 20:14:42,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:42,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:14:42,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:14:42,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:42,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:42,568 INFO L82 PathProgramCache]: Analyzing trace with hash -955726830, now seen corresponding path program 1 times [2020-09-24 20:14:42,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:42,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323962767] [2020-09-24 20:14:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:42,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-24 20:14:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 951 [2020-09-24 20:14:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:14:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-24 20:14:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:14:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:43,854 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:43,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:43,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:43,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:43,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 20:14:43,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:44,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:44,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:44,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:44,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:44,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:44,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:44,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:44,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:44,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:44,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 20:14:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 20:14:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 20:14:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:14:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:14:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:14:44,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 20:14:44,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 20:14:44,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:14:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:14:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:14:44,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:14:44,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 20:14:44,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:14:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:14:44,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:14:44,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:14:44,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:14:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:14:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:14:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:14:44,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:44,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:44,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:14:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:44,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:44,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 20:14:44,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 20:14:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:44,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:44,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 20:14:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:44,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 20:14:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:44,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:44,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:44,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:44,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:44,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:44,661 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 20:14:44,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323962767] [2020-09-24 20:14:44,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:44,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:14:44,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270916571] [2020-09-24 20:14:44,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:14:44,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:44,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:14:44,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:14:44,664 INFO L87 Difference]: Start difference. First operand 723 states and 817 transitions. Second operand 10 states. [2020-09-24 20:14:46,117 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:46,358 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:14:46,633 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:14:46,943 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:47,252 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:14:47,545 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:49,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:49,240 INFO L93 Difference]: Finished difference Result 1456 states and 1721 transitions. [2020-09-24 20:14:49,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:14:49,241 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2020-09-24 20:14:49,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:49,247 INFO L225 Difference]: With dead ends: 1456 [2020-09-24 20:14:49,248 INFO L226 Difference]: Without dead ends: 843 [2020-09-24 20:14:49,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:14:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-09-24 20:14:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 719. [2020-09-24 20:14:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-24 20:14:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 807 transitions. [2020-09-24 20:14:49,342 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 807 transitions. Word has length 210 [2020-09-24 20:14:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:49,342 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 807 transitions. [2020-09-24 20:14:49,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:14:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 807 transitions. [2020-09-24 20:14:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 20:14:49,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:49,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:14:49,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:14:49,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1337945199, now seen corresponding path program 1 times [2020-09-24 20:14:49,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:49,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972196757] [2020-09-24 20:14:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 20:14:50,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 927 [2020-09-24 20:14:50,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:14:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-09-24 20:14:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:14:50,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,690 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:50,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:50,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 20:14:50,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:50,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:50,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:50,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:50,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:14:50,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:50,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:50,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:50,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:50,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:50,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 20:14:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 20:14:50,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:14:50,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:14:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:14:50,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:14:50,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 20:14:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:14:51,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:14:51,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:14:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:51,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:14:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:51,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:14:51,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:51,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:14:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:51,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:14:51,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:51,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:51,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:51,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:51,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:14:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:51,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:14:51,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:51,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:14:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:51,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 20:14:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:51,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:51,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:51,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:51,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 20:14:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:51,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:51,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:51,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 20:14:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:51,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:51,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:51,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:51,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:51,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:51,196 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 20:14:51,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972196757] [2020-09-24 20:14:51,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:51,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:14:51,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706181155] [2020-09-24 20:14:51,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:14:51,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:51,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:14:51,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:14:51,201 INFO L87 Difference]: Start difference. First operand 719 states and 807 transitions. Second operand 10 states. [2020-09-24 20:14:52,883 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:53,915 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:54,201 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:54,584 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:54,918 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:55,240 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:56,045 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:56,349 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188