/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:59:10,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:59:10,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:59:10,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:59:10,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:59:10,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:59:10,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:59:10,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:59:10,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:59:10,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:59:10,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:59:10,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:59:10,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:59:10,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:59:10,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:59:10,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:59:10,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:59:10,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:59:10,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:59:10,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:59:10,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:59:10,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:59:10,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:59:10,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:59:10,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:59:10,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:59:10,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:59:10,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:59:10,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:59:10,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:59:10,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:59:10,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:59:10,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:59:10,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:59:10,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:59:10,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:59:10,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:59:10,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:59:10,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:59:10,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:59:10,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:59:10,932 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 [2020-09-25 11:59:10,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:59:10,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:59:10,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:59:10,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:59:10,981 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:59:10,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:59:10,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:59:10,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:59:10,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:59:10,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:59:10,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:59:10,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:59:10,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:59:10,983 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:59:10,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:59:10,984 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:59:10,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:59:10,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:59:10,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:59:10,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:59:10,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:59:10,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:59:10,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:59:10,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:59:10,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:59:10,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:59:10,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:59:10,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:59:10,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:59:10,989 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:59:11,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:59:11,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:59:11,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:59:11,541 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:59:11,541 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:59:11,543 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 11:59:11,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/389fe54d4/452629ee412e4a08858c4af139ab2acc/FLAGb81e532bb [2020-09-25 11:59:12,312 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:59:12,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 11:59:12,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/389fe54d4/452629ee412e4a08858c4af139ab2acc/FLAGb81e532bb [2020-09-25 11:59:12,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/389fe54d4/452629ee412e4a08858c4af139ab2acc [2020-09-25 11:59:12,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:59:12,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:59:12,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:59:12,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:59:12,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:59:12,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:59:12" (1/1) ... [2020-09-25 11:59:12,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47743781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:12, skipping insertion in model container [2020-09-25 11:59:12,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:59:12" (1/1) ... [2020-09-25 11:59:12,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:59:12,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:59:13,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:59:13,164 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:59:13,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:59:13,292 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:59:13,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13 WrapperNode [2020-09-25 11:59:13,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:59:13,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:59:13,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:59:13,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:59:13,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (1/1) ... [2020-09-25 11:59:13,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:59:13,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:59:13,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:59:13,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:59:13,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (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 [2020-09-25 11:59:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:59:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:59:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:59:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:59:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:59:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:59:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:59:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:59:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:59:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:59:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:59:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:59:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:59:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:59:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:59:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:59:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:59:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:59:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:59:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:59:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:59:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:59:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:59:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:59:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:59:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:59:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:59:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:59:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:59:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:59:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:59:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:59:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:59:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:59:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:59:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:59:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:59:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:59:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:59:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:59:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:59:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:59:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:59:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:59:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:59:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:59:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:59:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:59:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:59:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:59:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:59:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:59:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:59:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:59:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:59:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:59:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:59:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:59:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:59:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:59:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:59:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:59:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:59:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:59:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:59:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:59:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:59:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:59:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:59:14,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:59:14,717 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:59:14,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:59:14 BoogieIcfgContainer [2020-09-25 11:59:14,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:59:14,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:59:14,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:59:14,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:59:14,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:59:12" (1/3) ... [2020-09-25 11:59:14,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ab4f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:59:14, skipping insertion in model container [2020-09-25 11:59:14,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:59:13" (2/3) ... [2020-09-25 11:59:14,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ab4f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:59:14, skipping insertion in model container [2020-09-25 11:59:14,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:59:14" (3/3) ... [2020-09-25 11:59:14,734 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-25 11:59:14,746 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:59:14,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:59:14,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:59:14,817 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:59:14,817 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:59:14,817 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:59:14,817 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:59:14,817 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:59:14,818 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:59:14,818 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:59:14,818 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:59:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 11:59:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:59:14,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:14,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:14,870 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:14,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:14,878 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-25 11:59:14,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:14,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984435199] [2020-09-25 11:59:14,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:17,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:17,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:59:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:59:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 11:59:20,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:20,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:59:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:59:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 11:59:20,717 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:20,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:20,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:21,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 11:59:21,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:59:21,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:21,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:21,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:21,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:21,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:21,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:21,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:21,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:21,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:21,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:59:21,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:21,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:21,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:21,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:21,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:21,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:21,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:21,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:21,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:21,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:59:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:21,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:21,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:21,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:21,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:21,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:21,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:21,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:21,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984435199] [2020-09-25 11:59:21,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:21,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:59:21,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079664219] [2020-09-25 11:59:21,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:59:21,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:21,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:59:21,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:59:21,323 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 8 states. [2020-09-25 11:59:22,011 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:22,960 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:23,284 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:23,653 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:24,077 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:24,409 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:25,165 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:25,520 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:26,212 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:27,882 INFO L93 Difference]: Finished difference Result 715 states and 861 transitions. [2020-09-25 11:59:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 11:59:27,886 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 11:59:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:27,909 INFO L225 Difference]: With dead ends: 715 [2020-09-25 11:59:27,909 INFO L226 Difference]: Without dead ends: 480 [2020-09-25 11:59:27,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:59:27,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-25 11:59:28,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 421. [2020-09-25 11:59:28,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-25 11:59:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 465 transitions. [2020-09-25 11:59:28,078 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 465 transitions. Word has length 142 [2020-09-25 11:59:28,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:28,081 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 465 transitions. [2020-09-25 11:59:28,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:59:28,081 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 465 transitions. [2020-09-25 11:59:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 11:59:28,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:28,097 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] [2020-09-25 11:59:28,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:59:28,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:28,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2070189511, now seen corresponding path program 1 times [2020-09-25 11:59:28,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:28,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925809724] [2020-09-25 11:59:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:28,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:28,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:28,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:31,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:31,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 11:59:31,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:59:31,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3742 [2020-09-25 11:59:31,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:31,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:59:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:59:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,214 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:32,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 11:59:32,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:32,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:32,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:32,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:32,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:32,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:32,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:32,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:32,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:32,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:32,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:32,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:32,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 11:59:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:32,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 11:59:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:32,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:32,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925809724] [2020-09-25 11:59:32,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:32,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:59:32,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529768887] [2020-09-25 11:59:32,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:59:32,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:32,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:59:32,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:59:32,682 INFO L87 Difference]: Start difference. First operand 421 states and 465 transitions. Second operand 5 states. [2020-09-25 11:59:33,131 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:34,322 INFO L93 Difference]: Finished difference Result 810 states and 937 transitions. [2020-09-25 11:59:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:59:34,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-09-25 11:59:34,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:34,331 INFO L225 Difference]: With dead ends: 810 [2020-09-25 11:59:34,331 INFO L226 Difference]: Without dead ends: 499 [2020-09-25 11:59:34,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:59:34,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-25 11:59:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 421. [2020-09-25 11:59:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-25 11:59:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 463 transitions. [2020-09-25 11:59:34,408 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 463 transitions. Word has length 157 [2020-09-25 11:59:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:34,409 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 463 transitions. [2020-09-25 11:59:34,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:59:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 463 transitions. [2020-09-25 11:59:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 11:59:34,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:34,413 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] [2020-09-25 11:59:34,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:59:34,413 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:34,414 INFO L82 PathProgramCache]: Analyzing trace with hash 220030131, now seen corresponding path program 1 times [2020-09-25 11:59:34,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:34,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588917658] [2020-09-25 11:59:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:34,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:34,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:35,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:36,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:36,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:36,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:39,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:39,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 11:59:39,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:59:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 11:59:39,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:39,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 11:59:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:59:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-25 11:59:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:39,875 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:40,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-25 11:59:40,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:59:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:40,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:40,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:40,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:40,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:40,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:40,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:40,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:40,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:40,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:59:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:59:40,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:40,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:59:40,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:40,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:40,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:40,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 11:59:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:40,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:40,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:40,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:40,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 11:59:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:40,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:40,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:40,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:40,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:40,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:40,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:40,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:40,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588917658] [2020-09-25 11:59:40,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:40,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 11:59:40,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052301104] [2020-09-25 11:59:40,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:59:40,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:59:40,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:59:40,611 INFO L87 Difference]: Start difference. First operand 421 states and 463 transitions. Second operand 12 states. [2020-09-25 11:59:41,140 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:43,001 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:43,312 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:43,748 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:44,032 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:45,134 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:45,515 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:45,930 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:59:46,490 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:46,908 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:47,274 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:47,652 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 11:59:48,011 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:59:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:48,657 INFO L93 Difference]: Finished difference Result 1123 states and 1355 transitions. [2020-09-25 11:59:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 11:59:48,658 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2020-09-25 11:59:48,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:48,666 INFO L225 Difference]: With dead ends: 1123 [2020-09-25 11:59:48,667 INFO L226 Difference]: Without dead ends: 812 [2020-09-25 11:59:48,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2020-09-25 11:59:48,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-25 11:59:48,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 632. [2020-09-25 11:59:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-09-25 11:59:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 700 transitions. [2020-09-25 11:59:48,784 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 700 transitions. Word has length 170 [2020-09-25 11:59:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:48,785 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 700 transitions. [2020-09-25 11:59:48,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:59:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 700 transitions. [2020-09-25 11:59:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 11:59:48,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:48,791 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:48,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:59:48,791 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:48,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1053053690, now seen corresponding path program 1 times [2020-09-25 11:59:48,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:48,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957733289] [2020-09-25 11:59:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:48,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:53,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:53,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:53,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 11:59:53,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:59:53,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:59:53,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:53,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:59:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 11:59:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:59:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:54,190 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:54,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:54,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 11:59:54,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:54,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:54,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:54,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:54,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:54,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:54,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:54,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:54,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:54,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:54,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:54,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:54,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:54,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:59:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:59:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:54,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:59:54,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:54,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-25 11:59:54,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:54,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:59:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 11:59:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:59:54,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:54,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:54,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:55,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:55,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:59:55,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-09-25 11:59:55,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:55,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:59:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:55,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 11:59:55,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:55,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:55,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:55,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:55,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:59:55,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:55,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:55,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:55,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:55,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:59:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:55,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:55,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:55,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:59:55,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:55,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:55,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:55,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:55,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:55,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:59:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:55,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:55,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:55,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:59:55,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 11:59:55,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:55,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:59:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:55,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 11:59:55,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 28 [2020-09-25 11:59:55,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:59:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:55,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:55,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:55,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:59:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:55,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:55,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:55,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:59:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:59:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:55,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:59:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:55,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:55,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:59:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:56,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:59:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:56,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:56,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:56,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:59:56,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:56,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:56,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:56,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:59:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:56,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 11:59:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:56,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:56,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:56,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:56,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:56,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 11:59:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:56,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:56,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:56,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:56,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:59:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:56,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 11:59:56,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957733289] [2020-09-25 11:59:56,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:59:56,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 11:59:56,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085667661] [2020-09-25 11:59:56,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 11:59:56,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:56,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 11:59:56,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-25 11:59:56,167 INFO L87 Difference]: Start difference. First operand 632 states and 700 transitions. Second operand 14 states. [2020-09-25 11:59:56,760 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:57,769 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:58,876 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:59,233 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:59,623 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:59,998 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:00:00,324 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:00:00,636 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:00:00,965 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:00:01,283 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190