/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:20:09,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:20:09,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:20:09,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:20:09,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:20:09,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:20:09,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:20:09,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:20:09,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:20:09,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:20:09,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:20:09,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:20:09,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:20:09,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:20:09,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:20:09,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:20:09,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:20:09,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:20:09,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:20:09,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:20:09,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:20:09,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:20:09,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:20:09,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:20:09,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:20:09,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:20:09,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:20:09,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:20:09,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:20:09,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:20:09,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:20:09,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:20:09,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:20:09,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:20:09,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:20:09,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:20:09,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:20:09,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:20:09,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:20:09,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:20:09,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:20:09,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:20:09,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:20:09,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:20:09,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:20:09,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:20:09,944 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:20:09,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:20:09,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:20:09,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:20:09,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:20:09,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:20:09,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:20:09,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:20:09,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:20:09,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:20:09,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:20:09,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:20:09,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:20:09,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:20:09,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:20:09,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:20:09,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:20:09,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:20:09,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:20:09,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:20:09,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:20:09,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:20:09,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:20:09,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:20:09,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:20:09,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:20:10,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:20:10,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:20:10,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:20:10,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:20:10,500 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:20:10,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2020-09-24 20:20:10,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d1105a42/a2f35fa610db4bfd93805ffc84259996/FLAG02d6cce17 [2020-09-24 20:20:11,229 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:20:11,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2020-09-24 20:20:11,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d1105a42/a2f35fa610db4bfd93805ffc84259996/FLAG02d6cce17 [2020-09-24 20:20:11,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d1105a42/a2f35fa610db4bfd93805ffc84259996 [2020-09-24 20:20:11,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:20:11,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:20:11,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:20:11,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:20:11,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:20:11,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:20:11" (1/1) ... [2020-09-24 20:20:11,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:11, skipping insertion in model container [2020-09-24 20:20:11,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:20:11" (1/1) ... [2020-09-24 20:20:11,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:20:11,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:20:12,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:20:12,182 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:20:12,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:20:12,303 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:20:12,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12 WrapperNode [2020-09-24 20:20:12,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:20:12,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:20:12,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:20:12,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:20:12,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... [2020-09-24 20:20:12,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:20:12,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:20:12,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:20:12,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:20:12,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:20:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:20:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:20:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:20:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:20:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:20:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:20:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:20:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:20:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:20:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:20:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:20:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:20:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:20:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:20:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:20:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:20:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:20:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:20:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:20:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:20:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:20:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:20:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:20:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:20:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:20:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:20:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:20:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:20:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:20:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:20:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:20:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:20:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:20:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:20:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:20:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:20:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:20:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:20:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:20:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:20:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:20:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:20:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:20:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:20:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:20:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:20:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:20:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:20:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:20:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:20:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:20:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:20:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:20:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:20:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:20:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:20:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:20:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:20:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:20:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:20:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:20:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:20:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:20:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:20:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:20:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:20:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:20:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:20:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:20:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:20:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:20:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:20:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:20:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:20:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:20:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:20:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:20:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:20:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:20:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:20:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:20:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:20:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:20:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:20:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:20:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:20:13,753 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:20:13,753 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:20:13,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:20:13 BoogieIcfgContainer [2020-09-24 20:20:13,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:20:13,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:20:13,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:20:13,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:20:13,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:20:11" (1/3) ... [2020-09-24 20:20:13,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dcc4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:20:13, skipping insertion in model container [2020-09-24 20:20:13,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:12" (2/3) ... [2020-09-24 20:20:13,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dcc4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:20:13, skipping insertion in model container [2020-09-24 20:20:13,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:20:13" (3/3) ... [2020-09-24 20:20:13,777 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2020-09-24 20:20:13,790 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:20:13,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:20:13,828 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:20:13,879 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:20:13,879 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:20:13,879 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:20:13,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:20:13,881 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:20:13,882 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:20:13,882 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:20:13,882 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:20:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-24 20:20:13,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 20:20:13,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:13,971 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:20:13,973 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:13,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:13,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1798805574, now seen corresponding path program 1 times [2020-09-24 20:20:14,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:14,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234230641] [2020-09-24 20:20:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:14,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:15,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:15,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:17,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:19,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 20:20:19,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:20:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 20:20:19,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:20:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:20:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 20:20:19,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 20:20:20,060 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:20,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-24 20:20:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:20:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:20,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:20,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:20,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:20,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:20:20,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:20,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:20,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:20,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:20,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:20,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:20:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:20,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:20:20,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:20,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:20,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:20,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:20,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:20:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:20,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:20,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:20,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:20:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:20,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:20,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:20,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:20,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:20,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:20:20,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:20,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:20,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:20,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:20:20,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234230641] [2020-09-24 20:20:20,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:20,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:20:20,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967410032] [2020-09-24 20:20:20,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:20:20,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:20,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:20:20,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:20:20,698 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 9 states. [2020-09-24 20:20:21,363 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:22,086 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:22,428 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:23,828 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:24,157 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:24,493 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:24,975 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:25,306 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:25,602 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:26,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:26,267 INFO L93 Difference]: Finished difference Result 614 states and 740 transitions. [2020-09-24 20:20:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:20:26,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 20:20:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:26,290 INFO L225 Difference]: With dead ends: 614 [2020-09-24 20:20:26,291 INFO L226 Difference]: Without dead ends: 413 [2020-09-24 20:20:26,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:20:26,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-24 20:20:26,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 367. [2020-09-24 20:20:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-09-24 20:20:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 411 transitions. [2020-09-24 20:20:26,448 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 411 transitions. Word has length 160 [2020-09-24 20:20:26,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:26,451 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 411 transitions. [2020-09-24 20:20:26,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:20:26,451 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 411 transitions. [2020-09-24 20:20:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 20:20:26,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:26,461 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] [2020-09-24 20:20:26,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:20:26,462 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:26,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:26,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1901048636, now seen corresponding path program 1 times [2020-09-24 20:20:26,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:26,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513555844] [2020-09-24 20:20:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:26,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:27,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:27,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 20:20:27,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:27,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1186 [2020-09-24 20:20:27,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:27,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:27,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 20:20:27,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:27,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,014 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:28,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 20:20:28,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:28,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:28,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:28,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:28,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:28,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:20:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:28,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:28,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:28,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:20:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:20:28,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 20:20:28,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:20:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:20:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:20:28,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:20:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:28,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:20:28,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:20:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:28,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:28,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:28,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:20:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 20:20:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:28,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 20:20:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:28,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:28,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:28,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:28,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:28,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:28,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:28,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:28,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:28,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:28,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:20:28,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513555844] [2020-09-24 20:20:28,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:28,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:20:28,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168466856] [2020-09-24 20:20:28,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:20:28,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:28,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:20:28,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:20:28,583 INFO L87 Difference]: Start difference. First operand 367 states and 411 transitions. Second operand 10 states. [2020-09-24 20:20:30,283 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:30,617 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:31,020 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:20:31,348 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:31,699 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:32,003 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:32,916 INFO L93 Difference]: Finished difference Result 709 states and 851 transitions. [2020-09-24 20:20:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:20:32,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-24 20:20:32,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:32,926 INFO L225 Difference]: With dead ends: 709 [2020-09-24 20:20:32,926 INFO L226 Difference]: Without dead ends: 457 [2020-09-24 20:20:32,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:20:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-24 20:20:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 381. [2020-09-24 20:20:33,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-24 20:20:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 431 transitions. [2020-09-24 20:20:33,015 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 431 transitions. Word has length 208 [2020-09-24 20:20:33,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:33,016 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 431 transitions. [2020-09-24 20:20:33,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:20:33,017 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 431 transitions. [2020-09-24 20:20:33,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 20:20:33,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:33,020 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] [2020-09-24 20:20:33,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:20:33,021 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:33,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:33,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2026253020, now seen corresponding path program 1 times [2020-09-24 20:20:33,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:33,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154409597] [2020-09-24 20:20:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:33,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 20:20:33,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-24 20:20:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 20:20:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:34,178 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:34,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:34,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 20:20:34,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:34,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:34,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:34,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:34,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:34,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:34,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:34,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:34,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:34,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:34,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:20:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:34,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:34,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:34,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:20:34,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:20:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:20:34,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 20:20:34,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:20:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:20:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:20:34,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:20:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:34,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 20:20:34,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:20:34,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:20:34,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:34,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:20:34,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:20:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:34,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:34,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:34,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:20:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 20:20:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:34,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:34,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:34,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 20:20:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:34,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:34,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:34,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:20:34,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154409597] [2020-09-24 20:20:34,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:34,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:20:34,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711815258] [2020-09-24 20:20:34,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:20:34,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:34,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:20:34,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:20:34,765 INFO L87 Difference]: Start difference. First operand 381 states and 431 transitions. Second operand 9 states. [2020-09-24 20:20:36,175 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:36,482 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:36,850 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:37,191 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:37,519 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:38,447 INFO L93 Difference]: Finished difference Result 729 states and 893 transitions. [2020-09-24 20:20:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:20:38,449 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-24 20:20:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:38,460 INFO L225 Difference]: With dead ends: 729 [2020-09-24 20:20:38,460 INFO L226 Difference]: Without dead ends: 463 [2020-09-24 20:20:38,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:20:38,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-24 20:20:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 387. [2020-09-24 20:20:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 20:20:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 437 transitions. [2020-09-24 20:20:38,516 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 437 transitions. Word has length 208 [2020-09-24 20:20:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:38,517 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 437 transitions. [2020-09-24 20:20:38,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:20:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 437 transitions. [2020-09-24 20:20:38,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 20:20:38,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:38,520 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] [2020-09-24 20:20:38,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:20:38,520 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:38,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1409605922, now seen corresponding path program 1 times [2020-09-24 20:20:38,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:38,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500712296] [2020-09-24 20:20:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:38,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:42,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:42,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 20:20:42,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:20:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3895 [2020-09-24 20:20:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:20:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:20:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 20:20:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:42,844 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:42,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:42,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:43,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-24 20:20:43,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:20:43,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:43,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:43,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:43,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:43,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:43,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:43,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:20:43,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:43,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:43,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:43,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:43,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:43,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:43,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:20:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:43,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:20:43,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:43,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:43,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:43,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:43,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:20:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:20:43,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 20:20:43,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 20:20:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 20:20:43,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:20:43,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:20:43,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:20:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:43,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:20:43,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:43,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:43,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:43,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:20:43,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:43,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:20:43,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 20:20:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:43,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:43,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:43,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 20:20:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:43,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:43,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:43,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:43,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:20:43,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500712296] [2020-09-24 20:20:43,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:43,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:20:43,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047166244] [2020-09-24 20:20:43,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:20:43,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:43,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:20:43,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:20:43,592 INFO L87 Difference]: Start difference. First operand 387 states and 437 transitions. Second operand 7 states. [2020-09-24 20:20:44,282 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:44,978 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:47,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:47,518 INFO L93 Difference]: Finished difference Result 1039 states and 1293 transitions. [2020-09-24 20:20:47,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 20:20:47,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-24 20:20:47,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:47,524 INFO L225 Difference]: With dead ends: 1039 [2020-09-24 20:20:47,524 INFO L226 Difference]: Without dead ends: 756 [2020-09-24 20:20:47,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:20:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-24 20:20:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 670. [2020-09-24 20:20:47,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-09-24 20:20:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 785 transitions. [2020-09-24 20:20:47,614 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 785 transitions. Word has length 199 [2020-09-24 20:20:47,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:47,615 INFO L479 AbstractCegarLoop]: Abstraction has 670 states and 785 transitions. [2020-09-24 20:20:47,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:20:47,615 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 785 transitions. [2020-09-24 20:20:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 20:20:47,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:47,619 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] [2020-09-24 20:20:47,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:20:47,620 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:47,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:47,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1978565417, now seen corresponding path program 1 times [2020-09-24 20:20:47,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:47,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118841201] [2020-09-24 20:20:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:52,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:52,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 20:20:52,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:20:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 20:20:52,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:20:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:20:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-24 20:20:52,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,113 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:53,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:53,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 20:20:53,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:20:53,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:53,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:53,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:53,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:53,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:53,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:53,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:53,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:20:53,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:53,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:53,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:53,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:53,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:53,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:20:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:20:53,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:20:53,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:20:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:20:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:53,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:53,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:53,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 20:20:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:20:53,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 20:20:53,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 20:20:53,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:20:53,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:20:53,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:53,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:53,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:20:53,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:53,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:53,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:53,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:53,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:53,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:53,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:53,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:53,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 20:20:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:53,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:20:53,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:53,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 20:20:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:53,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:53,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:53,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:53,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:53,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:53,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:20:53,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118841201] [2020-09-24 20:20:53,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:53,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:20:53,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662155276] [2020-09-24 20:20:53,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:20:53,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:53,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:20:53,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:20:53,809 INFO L87 Difference]: Start difference. First operand 670 states and 785 transitions. Second operand 13 states. [2020-09-24 20:20:54,309 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:55,285 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:56,110 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:56,458 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:56,879 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:57,233 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:57,584 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:57,938 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:58,352 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:20:58,699 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193