/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_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:17:32,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:17:32,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:17:32,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:17:32,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:17:32,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:17:32,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:17:32,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:17:32,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:17:32,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:17:32,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:17:32,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:17:32,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:17:32,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:17:32,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:17:32,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:17:32,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:17:32,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:17:32,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:17:32,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:17:32,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:17:32,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:17:32,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:17:32,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:17:32,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:17:32,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:17:32,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:17:32,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:17:32,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:17:32,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:17:32,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:17:32,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:17:32,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:17:32,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:17:32,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:17:32,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:17:32,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:17:32,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:17:32,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:17:32,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:17:32,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:17:32,214 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 20:17:32,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:17:32,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:17:32,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:17:32,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:17:32,261 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:17:32,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:17:32,262 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:17:32,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:17:32,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:17:32,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:17:32,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:17:32,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:17:32,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:17:32,265 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:17:32,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:17:32,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:17:32,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:17:32,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:17:32,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:17:32,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:17:32,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:17:32,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:17:32,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:17:32,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:17:32,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:17:32,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:17:32,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:17:32,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:17:32,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:17:32,268 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 20:17:32,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:17:32,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:17:32,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:17:32,736 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:17:32,738 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:17:32,739 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 20:17:32,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/775e2bd94/6e9ed44da40e4ccc84181550bb37c042/FLAG7abbed34a [2020-09-24 20:17:33,449 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:17:33,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 20:17:33,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/775e2bd94/6e9ed44da40e4ccc84181550bb37c042/FLAG7abbed34a [2020-09-24 20:17:33,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/775e2bd94/6e9ed44da40e4ccc84181550bb37c042 [2020-09-24 20:17:33,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:17:33,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:17:33,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:33,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:17:33,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:17:33,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:33" (1/1) ... [2020-09-24 20:17:33,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:33, skipping insertion in model container [2020-09-24 20:17:33,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:17:33" (1/1) ... [2020-09-24 20:17:33,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:17:33,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:17:34,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:34,267 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:17:34,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:17:34,426 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:17:34,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34 WrapperNode [2020-09-24 20:17:34,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:17:34,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:17:34,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:17:34,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:17:34,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (1/1) ... [2020-09-24 20:17:34,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:17:34,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:17:34,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:17:34,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:17:34,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (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 20:17:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:17:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:17:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:17:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:17:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:17:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:17:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:17:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:17:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:17:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:17:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:17:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:17:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:17:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:17:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:17:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:17:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:17:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:17:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:17:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:17:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:17:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:17:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:17:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:17:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:17:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:17:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:17:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:17:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:17:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:17:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:17:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:17:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:17:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:17:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:17:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:17:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:17:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:17:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:17:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:17:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:17:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:17:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:17:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:17:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:17:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:17:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:17:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:17:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:17:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:17:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:17:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:17:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:17:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:17:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:17:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:17:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:17:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:17:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:17:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:17:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:17:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:17:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:17:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:17:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:17:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:17:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:17:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:17:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:17:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:17:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:17:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:17:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:17:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:17:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:17:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:17:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:17:35,828 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:17:35,828 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:17:35,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:35 BoogieIcfgContainer [2020-09-24 20:17:35,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:17:35,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:17:35,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:17:35,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:17:35,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:17:33" (1/3) ... [2020-09-24 20:17:35,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e73aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:35, skipping insertion in model container [2020-09-24 20:17:35,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:17:34" (2/3) ... [2020-09-24 20:17:35,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e73aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:17:35, skipping insertion in model container [2020-09-24 20:17:35,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:17:35" (3/3) ... [2020-09-24 20:17:35,852 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-24 20:17:35,865 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:17:35,878 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:17:35,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:17:35,940 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:17:35,940 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:17:35,941 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:17:35,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:17:35,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:17:35,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:17:35,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:17:35,943 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:17:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 20:17:36,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:17:36,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:36,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:17:36,010 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:36,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:36,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-24 20:17:36,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:36,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488646996] [2020-09-24 20:17:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:38,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:39,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:41,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:41,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:17:41,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 20:17:41,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:41,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:17:41,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:17:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:17:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:17:42,010 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:42,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:42,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-24 20:17:42,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:17:42,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:42,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:42,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:42,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:42,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:42,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:42,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:17:42,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:42,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:42,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:17:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:42,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:17:42,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:42,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:17:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:42,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:42,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:42,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:42,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:17:42,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:17:42,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:17:42,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:17:42,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:42,559 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 20:17:42,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488646996] [2020-09-24 20:17:42,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:42,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:17:42,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864831292] [2020-09-24 20:17:42,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:17:42,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:42,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:17:42,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:17:42,592 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 8 states. [2020-09-24 20:17:43,291 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:44,225 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:44,532 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:44,930 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:45,313 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:45,616 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:45,945 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:46,278 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:49,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:17:49,392 INFO L93 Difference]: Finished difference Result 772 states and 960 transitions. [2020-09-24 20:17:49,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:17:49,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:17:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:17:49,421 INFO L225 Difference]: With dead ends: 772 [2020-09-24 20:17:49,421 INFO L226 Difference]: Without dead ends: 533 [2020-09-24 20:17:49,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:17:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-24 20:17:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 487. [2020-09-24 20:17:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-09-24 20:17:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 565 transitions. [2020-09-24 20:17:49,599 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 565 transitions. Word has length 142 [2020-09-24 20:17:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:17:49,600 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 565 transitions. [2020-09-24 20:17:49,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:17:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 565 transitions. [2020-09-24 20:17:49,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:17:49,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:17:49,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:17:49,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:17:49,608 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:17:49,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:17:49,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1310581114, now seen corresponding path program 1 times [2020-09-24 20:17:49,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:17:49,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192087398] [2020-09-24 20:17:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:17:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:49,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:49,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:54,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:54,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:54,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:17:54,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:17:54,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 20:17:54,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:17:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:17:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 20:17:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:55,106 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:17:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:17:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:17:55,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 20:17:55,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:17:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:55,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:17:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:55,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:55,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:17:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:55,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:55,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:55,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:55,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:17:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:55,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:17:55,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:55,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:55,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:17:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:17:55,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:17:55,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:17:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:17:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:17:55,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:55,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:17:55,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:17:55,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 20:17:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:55,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:17:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:17:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:17:55,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:17:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:17:55,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:17:55,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:17:55,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:17:55,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:17:55,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:17:55,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:17:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:17:55,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:17:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:17:55,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:17:55,548 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 20:17:55,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192087398] [2020-09-24 20:17:55,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:17:55,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:17:55,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762675735] [2020-09-24 20:17:55,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:17:55,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:17:55,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:17:55,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:17:55,554 INFO L87 Difference]: Start difference. First operand 487 states and 565 transitions. Second operand 9 states. [2020-09-24 20:17:56,064 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:58,082 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:17:58,387 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:58,808 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:17:59,362 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:17:59,678 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:18:00,018 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:18:00,334 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:18:00,664 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:18:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:18:01,769 INFO L93 Difference]: Finished difference Result 1133 states and 1513 transitions. [2020-09-24 20:18:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:18:01,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:18:01,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:18:01,781 INFO L225 Difference]: With dead ends: 1133 [2020-09-24 20:18:01,781 INFO L226 Difference]: Without dead ends: 756 [2020-09-24 20:18:01,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:18:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-24 20:18:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 642. [2020-09-24 20:18:01,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-09-24 20:18:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 785 transitions. [2020-09-24 20:18:01,933 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 785 transitions. Word has length 148 [2020-09-24 20:18:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:18:01,934 INFO L479 AbstractCegarLoop]: Abstraction has 642 states and 785 transitions. [2020-09-24 20:18:01,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:18:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 785 transitions. [2020-09-24 20:18:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 20:18:01,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:18:01,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:01,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:18:01,943 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:18:01,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:18:01,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1875287345, now seen corresponding path program 1 times [2020-09-24 20:18:01,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:18:01,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704783903] [2020-09-24 20:18:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:18:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:02,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:02,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-24 20:18:07,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:18:07,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 20:18:07,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 20:18:07,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:07,302 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:18:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:18:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:18:07,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:18:07,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:18:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:07,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:18:07,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:18:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:07,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:18:07,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:07,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:07,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:18:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:07,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:07,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:07,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:07,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:18:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:07,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:07,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 20:18:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:07,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 20:18:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 20:18:07,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 20:18:07,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 20:18:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:18:07,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 20:18:07,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:18:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:07,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:18:07,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 20:18:07,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:18:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:18:07,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 20:18:07,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:18:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:18:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:18:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:07,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:07,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:07,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:07,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:18:07,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 20:18:07,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:18:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:18:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:18:08,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:18:08,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:18:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:18:08,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:18:08,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:18:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:18:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:18:08,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:08,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:18:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:08,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:18:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:08,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:08,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 20:18:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:18:08,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:18:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:18:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:08,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:08,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:08,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 20:18:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:18:08,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:18:08,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:18:08,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 20:18:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:08,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:08,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-24 20:18:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:08,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:08,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:08,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 20:18:08,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704783903] [2020-09-24 20:18:08,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:18:08,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:18:08,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650889333] [2020-09-24 20:18:08,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:18:08,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:18:08,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:18:08,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:18:08,302 INFO L87 Difference]: Start difference. First operand 642 states and 785 transitions. Second operand 12 states. [2020-09-24 20:18:10,085 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:10,370 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:18:10,656 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:18:10,948 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:11,267 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:18:11,548 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:13,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:18:13,336 INFO L93 Difference]: Finished difference Result 1557 states and 2284 transitions. [2020-09-24 20:18:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 20:18:13,337 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 251 [2020-09-24 20:18:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:18:13,345 INFO L225 Difference]: With dead ends: 1557 [2020-09-24 20:18:13,346 INFO L226 Difference]: Without dead ends: 1025 [2020-09-24 20:18:13,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 20:18:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2020-09-24 20:18:13,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 658. [2020-09-24 20:18:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-09-24 20:18:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 802 transitions. [2020-09-24 20:18:13,451 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 802 transitions. Word has length 251 [2020-09-24 20:18:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:18:13,452 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 802 transitions. [2020-09-24 20:18:13,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:18:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 802 transitions. [2020-09-24 20:18:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 20:18:13,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:18:13,457 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:13,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:18:13,457 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:18:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:18:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1603170095, now seen corresponding path program 1 times [2020-09-24 20:18:13,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:18:13,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121444175] [2020-09-24 20:18:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:18:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:14,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:17,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:17,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-24 20:18:17,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:18:17,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4253 [2020-09-24 20:18:17,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 20:18:17,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:17,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,091 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:18:18,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:18:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:18:18,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 20:18:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:18:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:18,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:18,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:18:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:18,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:18,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:18:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:18,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:18:18,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:18:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:18:18,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:18,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:18,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 20:18:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:18,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:18,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 20:18:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 20:18:18,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 20:18:18,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 20:18:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:18,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:18,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:18:18,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 20:18:18,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:18:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:18,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:18,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:18:18,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 20:18:18,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:18:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:18,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:18:18,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 20:18:18,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:18:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:18:18,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:18:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:18:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:18:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:18:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:18:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:18:18,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:18:18,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:18:18,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:18:18,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:18:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:18:18,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:18:18,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:18:18,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:18:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:18:18,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:18,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:18:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:18,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:18:18,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:18:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:18:18,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:18,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 20:18:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:18:18,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:18:18,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:18:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:18:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:18,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:18,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:18:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 20:18:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:18:18,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:18,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:18:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 20:18:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:18,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:18:18,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:18:18,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-24 20:18:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:18:18,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:18:18,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:18:18,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:18:18,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:18:18,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:18:18,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:18:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:18:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:18:18,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:18:18,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:18:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 20:18:19,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121444175] [2020-09-24 20:18:19,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:18:19,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:18:19,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894929016] [2020-09-24 20:18:19,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:18:19,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:18:19,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:18:19,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:18:19,049 INFO L87 Difference]: Start difference. First operand 658 states and 802 transitions. Second operand 11 states. [2020-09-24 20:18:20,268 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:20,561 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:18:20,864 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:18:21,159 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189