/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_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:20:30,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:20:30,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:20:30,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:20:30,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:20:30,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:20:30,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:20:30,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:20:30,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:20:30,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:20:30,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:20:30,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:20:30,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:20:30,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:20:30,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:20:30,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:20:30,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:20:30,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:20:30,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:20:30,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:20:30,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:20:30,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:20:30,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:20:30,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:20:30,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:20:30,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:20:30,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:20:30,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:20:30,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:20:30,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:20:30,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:20:30,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:20:30,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:20:30,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:20:30,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:20:30,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:20:30,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:20:30,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:20:30,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:20:30,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:20:30,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:20:30,792 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 20:20:30,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:20:30,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:20:30,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:20:30,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:20:30,820 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:20:30,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:20:30,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:20:30,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:20:30,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:20:30,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:20:30,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:20:30,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:20:30,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:20:30,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:20:30,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:20:30,822 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:20:30,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:20:30,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:20:30,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:20:30,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:20:30,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:20:30,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:20:30,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:20:30,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:20:30,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:20:30,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:20:30,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:20:30,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:20:30,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:20:30,824 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 20:20:31,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:20:31,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:20:31,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:20:31,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:20:31,317 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:20:31,318 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 20:20:31,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39aeacd3d/793172ec991f41469b3a5b081cfc9bd6/FLAG91a8143cd [2020-09-24 20:20:32,058 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:20:32,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-24 20:20:32,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39aeacd3d/793172ec991f41469b3a5b081cfc9bd6/FLAG91a8143cd [2020-09-24 20:20:32,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39aeacd3d/793172ec991f41469b3a5b081cfc9bd6 [2020-09-24 20:20:32,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:20:32,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:20:32,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:20:32,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:20:32,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:20:32,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:20:32" (1/1) ... [2020-09-24 20:20:32,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2159a123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:32, skipping insertion in model container [2020-09-24 20:20:32,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:20:32" (1/1) ... [2020-09-24 20:20:32,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:20:32,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:20:32,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:20:32,963 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:20:33,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:20:33,100 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:20:33,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33 WrapperNode [2020-09-24 20:20:33,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:20:33,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:20:33,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:20:33,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:20:33,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (1/1) ... [2020-09-24 20:20:33,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:20:33,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:20:33,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:20:33,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:20:33,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (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 20:20:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:20:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:20:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:20:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:20:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:20:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:20:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:20:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:20:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:20:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:20:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:20:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:20:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:20:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:20:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:20:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:20:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:20:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:20:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:20:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:20:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:20:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:20:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:20:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:20:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:20:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:20:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:20:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:20:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:20:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:20:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:20:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:20:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:20:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:20:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:20:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:20:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:20:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:20:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:20:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:20:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:20:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:20:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:20:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:20:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:20:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:20:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:20:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:20:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:20:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:20:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:20:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:20:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:20:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:20:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:20:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:20:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:20:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:20:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:20:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:20:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:20:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:20:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:20:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:20:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:20:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:20:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:20:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:20:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:20:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:20:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:20:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:20:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:20:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:20:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:20:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:20:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:20:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:20:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:20:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:20:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:20:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:20:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:20:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:20:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 20:20:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:20:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:20:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:20:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:20:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:20:34,574 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:20:34,574 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:20:34,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:20:34 BoogieIcfgContainer [2020-09-24 20:20:34,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:20:34,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:20:34,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:20:34,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:20:34,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:20:32" (1/3) ... [2020-09-24 20:20:34,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214c06a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:20:34, skipping insertion in model container [2020-09-24 20:20:34,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:33" (2/3) ... [2020-09-24 20:20:34,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214c06a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:20:34, skipping insertion in model container [2020-09-24 20:20:34,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:20:34" (3/3) ... [2020-09-24 20:20:34,603 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-09-24 20:20:34,615 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:20:34,629 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:20:34,654 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:20:34,703 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:20:34,704 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:20:34,705 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:20:34,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:20:34,705 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:20:34,706 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:20:34,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:20:34,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:20:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-24 20:20:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 20:20:34,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:34,796 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 20:20:34,796 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:34,805 INFO L82 PathProgramCache]: Analyzing trace with hash 797820518, now seen corresponding path program 1 times [2020-09-24 20:20:34,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:34,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340541698] [2020-09-24 20:20:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:37,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:40,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:40,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 20:20:40,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:20:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-09-24 20:20:40,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:20:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:20:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 20:20:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:20:40,891 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:40,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:40,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-24 20:20:41,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:20:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:41,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:41,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:41,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:41,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:41,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:41,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:20:41,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:41,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:41,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:41,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:41,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:41,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:41,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:20:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:41,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:20:41,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:41,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:41,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:41,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:41,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:20:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:41,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:41,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:41,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:41,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:20:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:41,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:41,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:20:41,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:41,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:20:41,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340541698] [2020-09-24 20:20:41,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:41,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:20:41,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052899440] [2020-09-24 20:20:41,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:20:41,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:41,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:20:41,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:20:41,532 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 9 states. [2020-09-24 20:20:42,172 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:42,981 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:43,349 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:45,026 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:45,336 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:45,688 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:46,175 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:46,484 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:46,791 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:47,688 INFO L93 Difference]: Finished difference Result 674 states and 804 transitions. [2020-09-24 20:20:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:20:47,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 20:20:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:47,715 INFO L225 Difference]: With dead ends: 674 [2020-09-24 20:20:47,715 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 20:20:47,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:20:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 20:20:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 399. [2020-09-24 20:20:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-09-24 20:20:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 444 transitions. [2020-09-24 20:20:47,918 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 444 transitions. Word has length 160 [2020-09-24 20:20:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:47,921 INFO L479 AbstractCegarLoop]: Abstraction has 399 states and 444 transitions. [2020-09-24 20:20:47,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:20:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 444 transitions. [2020-09-24 20:20:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-24 20:20:47,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:47,931 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:47,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:20:47,932 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:47,932 INFO L82 PathProgramCache]: Analyzing trace with hash -548905277, now seen corresponding path program 1 times [2020-09-24 20:20:47,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:47,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803905442] [2020-09-24 20:20:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:48,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-24 20:20:53,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:20:53,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-09-24 20:20:53,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:20:53,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:20:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 20:20:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,459 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:53,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:53,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 20:20:53,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:20:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:53,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:53,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:53,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:53,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:20:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:53,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:53,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:53,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:53,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:53,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:20:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 20:20:53,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 20:20:53,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:20:53,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:20:53,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 20:20:53,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:54,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:20:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:54,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:54,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:54,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:20:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:20:54,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:20:54,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:20:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:20:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:54,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:54,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:20:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:20:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:20:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:54,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:54,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:20:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:54,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:54,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:20:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:20:54,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:20:54,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 20:20:54,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:20:54,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:54,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:54,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:20:54,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 20:20:54,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:20:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:54,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 20:20:54,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:20:54,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:54,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:54,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:20:54,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:20:54,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:20:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:20:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:20:54,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:54,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:20:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:54,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:54,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:20:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:54,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:54,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 20:20:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:54,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:54,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:54,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-24 20:20:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:54,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:54,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:54,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:54,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:54,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:54,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:20:54,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803905442] [2020-09-24 20:20:54,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:20:54,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:20:54,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13682640] [2020-09-24 20:20:54,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:20:54,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:54,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:20:54,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:20:54,733 INFO L87 Difference]: Start difference. First operand 399 states and 444 transitions. Second operand 19 states. [2020-09-24 20:20:55,401 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:56,815 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 20:20:57,657 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:58,018 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:58,409 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:58,806 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:59,152 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:59,796 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:00,188 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:00,693 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:21:01,044 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:21:01,675 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 20:21:02,036 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:02,708 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:21:03,077 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:03,719 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 20:21:04,057 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:04,659 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:21:05,778 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 20:21:06,405 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 20:21:07,041 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-24 20:21:07,686 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 20:21:08,348 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-24 20:21:08,954 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 20:21:11,282 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:21:11,579 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:21:11,904 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:21:12,207 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:21:12,512 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:21:12,816 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:21:13,282 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:21:13,592 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:21:13,940 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:14,255 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:21:14,589 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:14,911 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:21:15,258 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:21:15,591 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:21:15,942 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:16,255 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:21:16,565 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:21:16,891 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:21:18,372 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:18,696 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:19,049 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:19,392 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:19,714 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:21:22,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:21:22,071 INFO L93 Difference]: Finished difference Result 1807 states and 2592 transitions. [2020-09-24 20:21:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-09-24 20:21:22,072 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 257 [2020-09-24 20:21:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:21:22,100 INFO L225 Difference]: With dead ends: 1807 [2020-09-24 20:21:22,100 INFO L226 Difference]: Without dead ends: 1523 [2020-09-24 20:21:22,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2793 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=1265, Invalid=6925, Unknown=0, NotChecked=0, Total=8190 [2020-09-24 20:21:22,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-09-24 20:21:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1184. [2020-09-24 20:21:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2020-09-24 20:21:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1442 transitions. [2020-09-24 20:21:22,331 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1442 transitions. Word has length 257 [2020-09-24 20:21:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:21:22,333 INFO L479 AbstractCegarLoop]: Abstraction has 1184 states and 1442 transitions. [2020-09-24 20:21:22,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:21:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1442 transitions. [2020-09-24 20:21:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 20:21:22,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:21:22,339 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 20:21:22,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:21:22,340 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:21:22,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:21:22,340 INFO L82 PathProgramCache]: Analyzing trace with hash 572483222, now seen corresponding path program 1 times [2020-09-24 20:21:22,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:21:22,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669578269] [2020-09-24 20:21:22,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:21:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:22,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 20:21:24,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:21:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1788 [2020-09-24 20:21:24,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 20:21:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,512 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:21:24,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:21:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:21:24,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 20:21:24,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:21:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:21:24,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:24,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:21:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:21:24,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:24,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:21:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:21:24,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:21:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:21:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:21:24,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:24,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:21:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:21:24,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:21:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:21:24,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:24,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:21:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:24,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:24,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:24,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:24,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:21:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:21:24,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 20:21:24,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:24,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:21:24,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:24,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:21:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:21:24,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 20:21:24,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:21:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:24,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:21:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:24,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:24,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:24,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:21:24,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:21:24,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:21:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:21:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:21:25,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:21:25,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:21:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:21:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:21:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:21:25,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:21:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:21:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:21:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:21:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:21:25,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:25,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:21:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:25,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:25,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:21:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:21:25,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:21:25,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:25,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 20:21:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:25,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:25,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:21:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-24 20:21:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:25,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:25,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:25,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:25,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:21:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:21:25,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669578269] [2020-09-24 20:21:25,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:21:25,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:21:25,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635194243] [2020-09-24 20:21:25,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:21:25,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:21:25,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:21:25,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:21:25,173 INFO L87 Difference]: Start difference. First operand 1184 states and 1442 transitions. Second operand 9 states.