/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=LOWLEXORDER --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_spec2_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:20:05,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:20:05,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:20:05,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:20:05,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:20:05,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:20:05,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:20:05,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:20:05,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:20:05,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:20:05,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:20:05,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:20:05,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:20:05,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:20:05,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:20:05,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:20:05,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:20:05,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:20:05,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:20:05,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:20:05,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:20:05,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:20:05,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:20:05,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:20:05,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:20:05,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:20:05,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:20:05,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:20:05,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:20:05,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:20:05,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:20:05,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:20:05,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:20:05,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:20:05,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:20:05,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:20:05,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:20:05,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:20:05,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:20:05,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:20:05,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:20:05,270 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 21:20:05,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:20:05,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:20:05,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:20:05,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:20:05,333 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:20:05,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:20:05,334 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:20:05,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:20:05,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:20:05,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:20:05,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:20:05,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:20:05,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:20:05,336 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:20:05,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:20:05,337 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:20:05,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:20:05,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:20:05,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:20:05,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:20:05,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:20:05,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:20:05,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:20:05,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:20:05,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:20:05,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:20:05,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:20:05,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:20:05,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:20:05,340 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:20:05,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:20:05,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:20:05,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:20:05,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:20:05,841 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:20:05,842 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-24 21:20:05,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a15e83bf/8abd3051eaf342b892ddd69cbca48c9d/FLAGd24049b09 [2020-09-24 21:20:06,511 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:20:06,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-24 21:20:06,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a15e83bf/8abd3051eaf342b892ddd69cbca48c9d/FLAGd24049b09 [2020-09-24 21:20:06,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a15e83bf/8abd3051eaf342b892ddd69cbca48c9d [2020-09-24 21:20:06,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:20:06,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:20:06,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:20:06,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:20:06,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:20:06,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:06" (1/1) ... [2020-09-24 21:20:06,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:06, skipping insertion in model container [2020-09-24 21:20:06,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:06" (1/1) ... [2020-09-24 21:20:06,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:20:06,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:20:07,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:20:07,389 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:20:07,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:20:07,606 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:20:07,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07 WrapperNode [2020-09-24 21:20:07,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:20:07,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:20:07,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:20:07,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:20:07,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... [2020-09-24 21:20:07,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:20:07,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:20:07,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:20:07,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:20:07,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:20:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:20:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:20:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:20:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:20:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:20:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:20:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:20:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:20:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:20:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:20:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:20:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:20:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:20:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:20:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:20:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:20:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:20:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:20:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:20:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:20:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:20:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:20:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:20:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:20:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:20:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:20:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:20:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:20:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:20:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:20:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:20:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:20:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:20:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:20:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:20:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:20:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:20:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:20:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:20:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:20:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:20:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:20:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:20:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:20:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:20:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:20:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:20:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:20:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:20:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:20:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:20:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:20:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:20:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:20:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:20:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:20:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:20:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:20:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:20:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:20:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:20:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:20:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:20:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:20:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:20:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:20:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:20:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:20:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:20:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:20:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:20:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:20:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:20:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:20:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:20:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:20:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:20:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:20:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:20:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:20:08,996 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:20:08,997 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:20:09,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:09 BoogieIcfgContainer [2020-09-24 21:20:09,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:20:09,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:20:09,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:20:09,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:20:09,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:06" (1/3) ... [2020-09-24 21:20:09,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d365cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:09, skipping insertion in model container [2020-09-24 21:20:09,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:07" (2/3) ... [2020-09-24 21:20:09,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d365cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:09, skipping insertion in model container [2020-09-24 21:20:09,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:09" (3/3) ... [2020-09-24 21:20:09,023 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2020-09-24 21:20:09,034 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:20:09,048 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:20:09,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:20:09,100 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:20:09,100 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:20:09,100 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:20:09,100 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:20:09,100 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:20:09,100 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:20:09,101 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:20:09,101 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:20:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-24 21:20:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:20:09,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:09,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:09,153 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:09,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1512755977, now seen corresponding path program 1 times [2020-09-24 21:20:09,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:09,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038245063] [2020-09-24 21:20:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:09,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:10,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:11,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:14,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:14,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:20:14,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:20:14,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 21:20:14,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:20:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 21:20:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 21:20:15,048 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:15,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-24 21:20:15,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:20:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:15,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:15,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:15,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:15,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:15,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:15,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:15,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:15,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:20:15,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:15,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:15,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:15,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:15,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:20:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:15,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:15,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:15,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:15,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:15,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:15,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:20:15,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038245063] [2020-09-24 21:20:15,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:15,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:20:15,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596685296] [2020-09-24 21:20:15,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:20:15,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:15,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:20:15,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:20:15,746 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 5 states. [2020-09-24 21:20:16,451 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:17,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:17,664 INFO L93 Difference]: Finished difference Result 544 states and 644 transitions. [2020-09-24 21:20:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:20:17,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:20:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:17,688 INFO L225 Difference]: With dead ends: 544 [2020-09-24 21:20:17,688 INFO L226 Difference]: Without dead ends: 339 [2020-09-24 21:20:17,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:20:17,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-24 21:20:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2020-09-24 21:20:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-24 21:20:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 317 transitions. [2020-09-24 21:20:17,818 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 317 transitions. Word has length 148 [2020-09-24 21:20:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:17,819 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 317 transitions. [2020-09-24 21:20:17,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:20:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 317 transitions. [2020-09-24 21:20:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 21:20:17,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:17,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:17,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:20:17,826 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:17,827 INFO L82 PathProgramCache]: Analyzing trace with hash -908618242, now seen corresponding path program 1 times [2020-09-24 21:20:17,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:17,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649767145] [2020-09-24 21:20:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:17,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:18,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:18,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:18,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:18,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:22,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:22,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 21:20:22,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:20:22,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 21:20:22,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:22,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 21:20:22,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:20:22,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 21:20:22,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,248 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:23,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:23,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-24 21:20:23,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:20:23,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:23,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:23,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:23,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:23,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:23,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:23,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:23,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:23,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:23,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:20:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:20:23,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:20:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:20:23,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:20:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:20:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:20:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:23,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:20:23,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:20:23,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:20:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:20:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:20:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:20:23,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:20:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:20:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:20:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:23,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:23,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:23,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:20:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:23,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:23,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:23,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:23,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 21:20:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:23,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:23,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:23,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:23,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:23,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:23,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:23,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:23,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:23,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:20:23,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649767145] [2020-09-24 21:20:23,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:23,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:20:23,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020114488] [2020-09-24 21:20:23,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:20:23,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:23,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:20:23,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:20:23,811 INFO L87 Difference]: Start difference. First operand 290 states and 317 transitions. Second operand 7 states. [2020-09-24 21:20:24,367 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:25,978 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:27,577 INFO L93 Difference]: Finished difference Result 693 states and 832 transitions. [2020-09-24 21:20:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:20:27,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-24 21:20:27,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:27,587 INFO L225 Difference]: With dead ends: 693 [2020-09-24 21:20:27,587 INFO L226 Difference]: Without dead ends: 518 [2020-09-24 21:20:27,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:20:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-24 21:20:27,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 429. [2020-09-24 21:20:27,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-24 21:20:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 478 transitions. [2020-09-24 21:20:27,668 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 478 transitions. Word has length 167 [2020-09-24 21:20:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:27,669 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 478 transitions. [2020-09-24 21:20:27,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:20:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 478 transitions. [2020-09-24 21:20:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 21:20:27,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:27,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:27,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:20:27,674 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1056538629, now seen corresponding path program 1 times [2020-09-24 21:20:27,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:27,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143426613] [2020-09-24 21:20:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:27,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:30,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 21:20:32,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:20:32,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 21:20:32,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 21:20:32,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:20:32,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 21:20:32,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:33,168 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:33,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:33,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 21:20:33,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:20:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:33,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:33,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:33,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:33,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:33,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:33,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:33,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:33,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:33,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:33,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:33,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:33,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:33,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:33,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:20:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:20:33,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:20:33,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-09-24 21:20:33,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:20:33,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:20:33,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 21:20:33,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:20:34,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:34,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 21:20:34,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:20:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:20:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:20:34,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:34,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:34,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:20:34,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:20:34,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:20:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 21:20:34,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:34,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:34,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:34,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:20:34,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:20:34,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:34,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:34,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:34,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:34,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:34,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:34,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:34,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:34,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 21:20:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:34,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:34,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:34,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:34,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:34,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 21:20:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:34,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:34,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:34,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:34,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:20:34,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143426613] [2020-09-24 21:20:34,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:34,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:20:34,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608259023] [2020-09-24 21:20:34,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:20:34,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:34,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:20:34,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:20:34,325 INFO L87 Difference]: Start difference. First operand 429 states and 478 transitions. Second operand 11 states. [2020-09-24 21:20:35,174 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-24 21:20:37,297 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 21:20:37,637 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:20:38,336 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-09-24 21:20:38,630 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:39,319 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 21:20:40,031 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 198 [2020-09-24 21:20:40,685 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-09-24 21:20:41,019 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:42,769 INFO L93 Difference]: Finished difference Result 803 states and 944 transitions. [2020-09-24 21:20:42,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 21:20:42,769 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 191 [2020-09-24 21:20:42,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:42,774 INFO L225 Difference]: With dead ends: 803 [2020-09-24 21:20:42,775 INFO L226 Difference]: Without dead ends: 489 [2020-09-24 21:20:42,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2020-09-24 21:20:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-09-24 21:20:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 427. [2020-09-24 21:20:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-24 21:20:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 474 transitions. [2020-09-24 21:20:42,845 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 474 transitions. Word has length 191 [2020-09-24 21:20:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:42,846 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 474 transitions. [2020-09-24 21:20:42,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:20:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 474 transitions. [2020-09-24 21:20:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 21:20:42,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:42,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:42,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:20:42,850 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:42,850 INFO L82 PathProgramCache]: Analyzing trace with hash 582593759, now seen corresponding path program 1 times [2020-09-24 21:20:42,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:42,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114326722] [2020-09-24 21:20:42,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:42,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:43,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:44,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:47,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:47,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 21:20:47,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:20:47,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 21:20:47,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:20:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 21:20:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 21:20:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:48,300 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:48,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:48,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-24 21:20:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 21:20:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:48,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:48,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:48,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:48,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:48,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:48,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:48,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:48,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:48,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:48,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:48,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:48,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:48,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:48,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:48,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:48,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:48,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:48,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:20:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:48,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:20:48,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:48,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 21:20:48,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:48,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:48,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:20:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:48,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:48,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:20:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 21:20:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:20:49,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 21:20:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:49,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:49,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:49,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:49,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:49,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:49,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:49,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:49,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 21:20:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:49,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:20:49,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:49,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 21:20:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:49,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:49,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:20:49,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114326722] [2020-09-24 21:20:49,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:49,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:20:49,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474181223] [2020-09-24 21:20:49,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:20:49,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:49,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:20:49,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:20:49,320 INFO L87 Difference]: Start difference. First operand 427 states and 474 transitions. Second operand 10 states. [2020-09-24 21:20:49,921 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:51,629 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:51,951 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:52,287 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:52,647 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:52,977 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:53,489 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:53,791 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:54,156 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190