/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:10:43,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:10:43,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:10:43,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:10:43,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:10:43,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:10:43,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:10:43,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:10:43,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:10:43,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:10:43,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:10:43,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:10:43,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:10:43,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:10:43,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:10:43,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:10:43,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:10:43,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:10:43,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:10:43,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:10:43,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:10:43,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:10:43,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:10:43,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:10:43,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:10:43,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:10:43,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:10:43,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:10:43,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:10:43,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:10:43,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:10:43,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:10:43,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:10:43,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:10:43,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:10:43,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:10:43,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:10:43,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:10:43,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:10:43,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:10:43,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:10:43,519 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 [2020-09-21 12:10:43,565 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:10:43,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:10:43,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:10:43,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:10:43,567 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:10:43,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:10:43,567 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:10:43,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:10:43,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:10:43,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:10:43,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:10:43,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:10:43,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:10:43,570 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:10:43,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:10:43,570 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:10:43,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:10:43,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:10:43,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:10:43,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:10:43,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:10:43,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:10:43,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:10:43,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:10:43,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:10:43,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:10:43,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:10:43,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:10:43,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:10:43,573 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:10:44,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:10:44,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:10:44,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:10:44,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:10:44,074 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:10:44,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-09-21 12:10:44,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9caee2885/18f843deb0d34ee3b45fbffe6bcf4078/FLAG0db9c888b [2020-09-21 12:10:44,796 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:10:44,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-09-21 12:10:44,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9caee2885/18f843deb0d34ee3b45fbffe6bcf4078/FLAG0db9c888b [2020-09-21 12:10:45,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9caee2885/18f843deb0d34ee3b45fbffe6bcf4078 [2020-09-21 12:10:45,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:10:45,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:10:45,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:10:45,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:10:45,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:10:45,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45, skipping insertion in model container [2020-09-21 12:10:45,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:10:45,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:10:45,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:10:45,544 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:10:45,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:10:45,793 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:10:45,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45 WrapperNode [2020-09-21 12:10:45,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:10:45,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:10:45,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:10:45,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:10:45,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (1/1) ... [2020-09-21 12:10:45,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:10:45,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:10:45,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:10:45,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:10:45,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (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 [2020-09-21 12:10:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:10:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:10:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:10:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:10:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:10:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:10:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:10:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:10:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:10:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:10:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:10:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:10:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:10:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:10:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:10:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:10:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:10:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:10:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:10:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:10:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:10:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:10:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:10:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:10:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:10:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:10:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:10:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:10:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:10:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:10:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:10:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:10:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:10:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:10:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:10:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:10:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:10:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:10:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:10:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:10:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:10:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:10:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:10:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:10:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:10:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:10:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:10:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:10:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:10:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:10:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:10:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:10:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:10:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:10:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:10:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:10:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:10:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:10:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:10:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:10:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:10:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:10:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:10:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:10:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:10:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:10:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:10:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:10:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:10:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:10:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:10:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:10:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:10:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:10:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:10:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:10:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:10:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:10:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:10:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:10:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:10:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:10:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:10:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:10:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:10:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:10:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:10:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:10:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:10:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:10:47,192 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:10:47,193 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:10:47,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:10:47 BoogieIcfgContainer [2020-09-21 12:10:47,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:10:47,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:10:47,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:10:47,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:10:47,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:10:45" (1/3) ... [2020-09-21 12:10:47,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9df0707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:10:47, skipping insertion in model container [2020-09-21 12:10:47,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:45" (2/3) ... [2020-09-21 12:10:47,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9df0707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:10:47, skipping insertion in model container [2020-09-21 12:10:47,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:10:47" (3/3) ... [2020-09-21 12:10:47,216 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2020-09-21 12:10:47,229 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:10:47,241 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:10:47,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:10:47,300 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:10:47,301 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:10:47,301 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:10:47,301 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:10:47,301 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:10:47,301 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:10:47,302 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:10:47,302 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:10:47,330 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-09-21 12:10:47,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:10:47,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:47,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:47,345 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:47,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:47,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083297, now seen corresponding path program 1 times [2020-09-21 12:10:47,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:47,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287629081] [2020-09-21 12:10:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:47,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:10:48,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-21 12:10:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:10:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-21 12:10:49,266 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:49,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:49,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 12:10:49,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:49,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:49,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:49,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:49,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:49,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:49,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:49,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:49,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:49,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:49,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:49,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:10:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:49,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:49,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:49,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:49,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:49,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:49,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:49,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:49,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:49,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287629081] [2020-09-21 12:10:49,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:49,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:10:49,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778047939] [2020-09-21 12:10:49,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:10:49,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:49,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:10:49,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:10:49,512 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 4 states. [2020-09-21 12:10:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:50,739 INFO L93 Difference]: Finished difference Result 306 states and 397 transitions. [2020-09-21 12:10:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:10:50,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:10:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:50,760 INFO L225 Difference]: With dead ends: 306 [2020-09-21 12:10:50,760 INFO L226 Difference]: Without dead ends: 170 [2020-09-21 12:10:50,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:10:50,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-09-21 12:10:50,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 137. [2020-09-21 12:10:50,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-21 12:10:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2020-09-21 12:10:50,872 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 51 [2020-09-21 12:10:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:50,872 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2020-09-21 12:10:50,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:10:50,872 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2020-09-21 12:10:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:10:50,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:50,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:50,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:10:50,883 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:50,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:50,883 INFO L82 PathProgramCache]: Analyzing trace with hash 604742129, now seen corresponding path program 1 times [2020-09-21 12:10:50,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:50,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987087805] [2020-09-21 12:10:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:51,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:51,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:51,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:10:51,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:51,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-21 12:10:51,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:51,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:10:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:51,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:52,363 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:52,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 12:10:52,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:52,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:52,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:52,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:52,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:52,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:52,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:52,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:52,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:52,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:52,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:52,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:52,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:52,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:10:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:52,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:52,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:52,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:52,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:52,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:52,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:52,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:52,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987087805] [2020-09-21 12:10:52,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:52,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:52,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898336631] [2020-09-21 12:10:52,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:52,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:52,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:52,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:52,574 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 5 states. [2020-09-21 12:10:53,177 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:54,175 INFO L93 Difference]: Finished difference Result 247 states and 304 transitions. [2020-09-21 12:10:54,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:10:54,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 12:10:54,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:54,189 INFO L225 Difference]: With dead ends: 247 [2020-09-21 12:10:54,190 INFO L226 Difference]: Without dead ends: 160 [2020-09-21 12:10:54,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:54,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-21 12:10:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 128. [2020-09-21 12:10:54,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 12:10:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2020-09-21 12:10:54,253 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 52 [2020-09-21 12:10:54,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:54,253 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2020-09-21 12:10:54,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:54,253 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2020-09-21 12:10:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:10:54,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:54,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:54,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:10:54,256 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:54,257 INFO L82 PathProgramCache]: Analyzing trace with hash -185652476, now seen corresponding path program 1 times [2020-09-21 12:10:54,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:54,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949444041] [2020-09-21 12:10:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:10:55,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-09-21 12:10:55,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 12:10:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:55,699 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:55,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-21 12:10:55,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:55,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:55,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:55,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:55,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:55,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:55,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:55,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:10:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:55,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:55,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:55,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:55,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949444041] [2020-09-21 12:10:55,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:55,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:55,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6620213] [2020-09-21 12:10:55,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:55,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:56,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:56,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:56,000 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 5 states. [2020-09-21 12:10:56,386 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:57,420 INFO L93 Difference]: Finished difference Result 260 states and 323 transitions. [2020-09-21 12:10:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:10:57,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 12:10:57,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:57,424 INFO L225 Difference]: With dead ends: 260 [2020-09-21 12:10:57,424 INFO L226 Difference]: Without dead ends: 160 [2020-09-21 12:10:57,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-21 12:10:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 128. [2020-09-21 12:10:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 12:10:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2020-09-21 12:10:57,459 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 57 [2020-09-21 12:10:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:57,460 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2020-09-21 12:10:57,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2020-09-21 12:10:57,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 12:10:57,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:57,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:57,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:10:57,463 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:57,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:57,464 INFO L82 PathProgramCache]: Analyzing trace with hash -285076691, now seen corresponding path program 1 times [2020-09-21 12:10:57,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:57,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953475126] [2020-09-21 12:10:57,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:57,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-21 12:10:58,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:58,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 12:10:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-21 12:10:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,855 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:58,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:58,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 12:10:58,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:58,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:58,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:58,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:58,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:58,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:58,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:58,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:58,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:58,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:58,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:58,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:58,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:58,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:58,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:58,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:58,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:58,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:58,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:58,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:58,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:59,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:59,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:10:59,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:59,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:10:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:59,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:59,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:59,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:59,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:59,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:59,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:10:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:10:59,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:59,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:59,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:59,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:59,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:59,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:10:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:59,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:59,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:59,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 12:10:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:59,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:59,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:59,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:59,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:59,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:10:59,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953475126] [2020-09-21 12:10:59,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:59,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:10:59,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563067464] [2020-09-21 12:10:59,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:10:59,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:59,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:10:59,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:10:59,096 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 7 states. [2020-09-21 12:10:59,538 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:11:01,006 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:01,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:01,960 INFO L93 Difference]: Finished difference Result 359 states and 451 transitions. [2020-09-21 12:11:01,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:11:01,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-09-21 12:11:01,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:01,964 INFO L225 Difference]: With dead ends: 359 [2020-09-21 12:11:01,964 INFO L226 Difference]: Without dead ends: 259 [2020-09-21 12:11:01,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:11:01,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-21 12:11:02,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 210. [2020-09-21 12:11:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-21 12:11:02,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 240 transitions. [2020-09-21 12:11:02,044 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 240 transitions. Word has length 70 [2020-09-21 12:11:02,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:02,045 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 240 transitions. [2020-09-21 12:11:02,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:11:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 240 transitions. [2020-09-21 12:11:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 12:11:02,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:02,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:02,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:11:02,049 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:02,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:02,049 INFO L82 PathProgramCache]: Analyzing trace with hash -791027315, now seen corresponding path program 1 times [2020-09-21 12:11:02,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:02,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024692347] [2020-09-21 12:11:02,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:02,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 12:11:03,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:11:03,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 12:11:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-21 12:11:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-21 12:11:03,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,422 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:03,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 12:11:03,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:03,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:03,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:03,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:03,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:03,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:03,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:03,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:03,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:03,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:11:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:11:03,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:11:03,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-21 12:11:03,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:11:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 12:11:03,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:11:03,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:03,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:11:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:03,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:11:03,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:11:03,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:03,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:03,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:03,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:03,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:03,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:03,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 12:11:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:03,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:03,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 12:11:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:03,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:03,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:03,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:03,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:03,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:03,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:03,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:03,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024692347] [2020-09-21 12:11:03,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:03,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:11:03,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642760213] [2020-09-21 12:11:03,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:11:03,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:03,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:11:03,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:11:03,785 INFO L87 Difference]: Start difference. First operand 210 states and 240 transitions. Second operand 9 states. [2020-09-21 12:11:04,280 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:11:05,793 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-21 12:11:06,113 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:11:06,443 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:11:06,709 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:11:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:07,861 INFO L93 Difference]: Finished difference Result 440 states and 539 transitions. [2020-09-21 12:11:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 12:11:07,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-21 12:11:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:07,866 INFO L225 Difference]: With dead ends: 440 [2020-09-21 12:11:07,866 INFO L226 Difference]: Without dead ends: 258 [2020-09-21 12:11:07,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2020-09-21 12:11:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-21 12:11:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 209. [2020-09-21 12:11:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-21 12:11:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 237 transitions. [2020-09-21 12:11:07,934 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 237 transitions. Word has length 84 [2020-09-21 12:11:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:07,935 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 237 transitions. [2020-09-21 12:11:07,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:11:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 237 transitions. [2020-09-21 12:11:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:11:07,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:07,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:07,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:11:07,937 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:07,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:07,937 INFO L82 PathProgramCache]: Analyzing trace with hash 2015679326, now seen corresponding path program 1 times [2020-09-21 12:11:07,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:07,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537455499] [2020-09-21 12:11:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:08,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:08,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:11:09,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:09,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-09-21 12:11:09,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:11:09,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 12:11:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:11:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,285 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:09,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:09,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:11:09,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:09,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:09,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:09,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:09,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:09,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:09,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:09,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:09,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:09,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:11:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:09,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 12:11:09,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:11:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:11:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:11:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:09,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 12:11:09,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:11:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:11:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:11:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:09,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:11:09,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:11:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:09,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:09,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:09,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:09,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:09,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:09,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:09,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:11:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:09,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:09,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:09,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:11:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:09,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:09,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:09,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:09,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:09,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:09,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537455499] [2020-09-21 12:11:09,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:09,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:11:09,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604905944] [2020-09-21 12:11:09,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:11:09,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:09,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:11:09,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:11:09,714 INFO L87 Difference]: Start difference. First operand 209 states and 237 transitions. Second operand 9 states. [2020-09-21 12:11:10,980 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:11,294 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:11:11,636 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:11:11,968 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:11:13,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:13,075 INFO L93 Difference]: Finished difference Result 438 states and 532 transitions. [2020-09-21 12:11:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:11:13,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-21 12:11:13,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:13,081 INFO L225 Difference]: With dead ends: 438 [2020-09-21 12:11:13,081 INFO L226 Difference]: Without dead ends: 257 [2020-09-21 12:11:13,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:11:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-21 12:11:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 214. [2020-09-21 12:11:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-21 12:11:13,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 242 transitions. [2020-09-21 12:11:13,127 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 242 transitions. Word has length 85 [2020-09-21 12:11:13,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:13,128 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 242 transitions. [2020-09-21 12:11:13,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:11:13,128 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 242 transitions. [2020-09-21 12:11:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:11:13,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:13,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:13,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:11:13,130 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:13,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1577688096, now seen corresponding path program 1 times [2020-09-21 12:11:13,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:13,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449751219] [2020-09-21 12:11:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:13,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:13,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:11:14,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-21 12:11:14,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 12:11:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:14,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:14,514 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:14,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:14,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:11:14,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:14,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:14,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:14,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:14,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:14,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:14,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:14,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:14,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:11:14,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:14,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:14,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:11:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:14,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 12:11:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:11:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:14,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 12:11:14,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:11:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:14,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 12:11:14,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:11:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:14,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:14,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:11:14,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:11:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:14,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:14,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:14,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:11:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:14,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:14,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:11:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:14,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:14,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:14,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:14,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:14,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:14,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:14,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449751219] [2020-09-21 12:11:14,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:14,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:11:14,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212299066] [2020-09-21 12:11:14,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:11:14,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:14,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:11:14,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:11:14,924 INFO L87 Difference]: Start difference. First operand 214 states and 242 transitions. Second operand 8 states. [2020-09-21 12:11:16,100 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:16,445 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:16,797 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:17,682 INFO L93 Difference]: Finished difference Result 450 states and 552 transitions. [2020-09-21 12:11:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:11:17,683 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-09-21 12:11:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:17,687 INFO L225 Difference]: With dead ends: 450 [2020-09-21 12:11:17,687 INFO L226 Difference]: Without dead ends: 264 [2020-09-21 12:11:17,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:11:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-21 12:11:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 218. [2020-09-21 12:11:17,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-21 12:11:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 246 transitions. [2020-09-21 12:11:17,750 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 246 transitions. Word has length 85 [2020-09-21 12:11:17,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:17,751 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 246 transitions. [2020-09-21 12:11:17,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:11:17,752 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 246 transitions. [2020-09-21 12:11:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 12:11:17,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:17,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:17,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:11:17,753 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:17,754 INFO L82 PathProgramCache]: Analyzing trace with hash 147792801, now seen corresponding path program 1 times [2020-09-21 12:11:17,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:17,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556370333] [2020-09-21 12:11:17,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:18,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:18,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:18,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 12:11:18,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:11:18,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:11:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 12:11:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:19,094 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:19,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:19,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-21 12:11:19,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:19,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:19,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:19,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:19,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:19,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:19,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:19,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:19,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:11:19,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:19,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:19,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:19,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:19,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:19,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:11:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:19,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:11:19,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:11:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:11:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:19,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 12:11:19,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:11:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:19,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:11:19,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:11:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:19,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:11:19,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:11:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:19,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:19,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:19,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 12:11:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:19,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:19,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:19,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 12:11:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:19,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:19,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:19,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:19,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:19,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:19,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:19,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556370333] [2020-09-21 12:11:19,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:19,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:11:19,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842832248] [2020-09-21 12:11:19,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:11:19,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:19,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:11:19,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:11:19,601 INFO L87 Difference]: Start difference. First operand 218 states and 246 transitions. Second operand 7 states. [2020-09-21 12:11:20,043 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:11:20,643 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:11:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:22,800 INFO L93 Difference]: Finished difference Result 614 states and 770 transitions. [2020-09-21 12:11:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:11:22,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-21 12:11:22,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:22,813 INFO L225 Difference]: With dead ends: 614 [2020-09-21 12:11:22,813 INFO L226 Difference]: Without dead ends: 424 [2020-09-21 12:11:22,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:11:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-21 12:11:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 379. [2020-09-21 12:11:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-21 12:11:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 442 transitions. [2020-09-21 12:11:22,889 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 442 transitions. Word has length 85 [2020-09-21 12:11:22,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:22,890 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 442 transitions. [2020-09-21 12:11:22,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:11:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 442 transitions. [2020-09-21 12:11:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 12:11:22,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:22,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:22,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:11:22,892 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:22,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1635240007, now seen corresponding path program 1 times [2020-09-21 12:11:22,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:22,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544893454] [2020-09-21 12:11:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:23,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:23,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 12:11:23,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:23,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-09-21 12:11:23,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:23,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:11:23,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:11:23,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 12:11:23,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:24,273 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:11:24,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:24,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:24,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:24,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:24,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:24,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:24,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:24,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:11:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:24,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:24,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:24,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:11:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:24,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:11:24,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:11:24,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:24,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:11:24,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:24,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:24,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:24,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:24,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:24,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:24,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 12:11:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 12:11:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:24,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:24,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:24,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:24,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:24,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:24,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:24,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544893454] [2020-09-21 12:11:24,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:24,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:11:24,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381035293] [2020-09-21 12:11:24,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:11:24,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:11:24,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:11:24,567 INFO L87 Difference]: Start difference. First operand 379 states and 442 transitions. Second operand 7 states. [2020-09-21 12:11:25,113 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:11:27,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:27,600 INFO L93 Difference]: Finished difference Result 719 states and 914 transitions. [2020-09-21 12:11:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 12:11:27,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-09-21 12:11:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:27,605 INFO L225 Difference]: With dead ends: 719 [2020-09-21 12:11:27,605 INFO L226 Difference]: Without dead ends: 716 [2020-09-21 12:11:27,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:11:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-09-21 12:11:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 635. [2020-09-21 12:11:27,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-21 12:11:27,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 757 transitions. [2020-09-21 12:11:27,724 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 757 transitions. Word has length 89 [2020-09-21 12:11:27,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:27,724 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 757 transitions. [2020-09-21 12:11:27,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:11:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 757 transitions. [2020-09-21 12:11:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-21 12:11:27,727 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:27,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:27,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:11:27,728 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:27,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:27,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1576871195, now seen corresponding path program 1 times [2020-09-21 12:11:27,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:27,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161922264] [2020-09-21 12:11:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:27,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:28,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:28,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:28,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:28,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-21 12:11:28,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:11:28,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:11:28,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-21 12:11:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 12:11:28,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,106 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:11:29,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:29,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:29,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:29,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:29,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:11:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:29,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:11:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-21 12:11:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:11:29,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-21 12:11:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:29,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 12:11:29,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:29,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:11:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:29,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:11:29,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:11:29,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:29,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:29,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:29,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:29,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 12:11:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:11:29,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:11:29,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:11:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:11:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:29,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 12:11:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:29,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:11:29,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-21 12:11:29,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:29,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:11:29,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:29,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:29,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:29,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:29,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:29,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:29,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 12:11:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-21 12:11:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:29,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:29,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:29,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-21 12:11:29,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161922264] [2020-09-21 12:11:29,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:11:29,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:11:29,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034577859] [2020-09-21 12:11:29,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:11:29,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:29,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:11:29,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:11:29,651 INFO L87 Difference]: Start difference. First operand 635 states and 757 transitions. Second operand 8 states. [2020-09-21 12:11:30,727 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:11:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:31,724 INFO L93 Difference]: Finished difference Result 1106 states and 1362 transitions. [2020-09-21 12:11:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 12:11:31,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2020-09-21 12:11:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:31,730 INFO L225 Difference]: With dead ends: 1106 [2020-09-21 12:11:31,730 INFO L226 Difference]: Without dead ends: 568 [2020-09-21 12:11:31,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:11:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-09-21 12:11:31,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 529. [2020-09-21 12:11:31,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2020-09-21 12:11:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 621 transitions. [2020-09-21 12:11:31,874 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 621 transitions. Word has length 148 [2020-09-21 12:11:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:31,874 INFO L479 AbstractCegarLoop]: Abstraction has 529 states and 621 transitions. [2020-09-21 12:11:31,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:11:31,875 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 621 transitions. [2020-09-21 12:11:31,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-09-21 12:11:31,878 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:31,878 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:11:31,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:11:31,879 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:31,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:31,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1315748181, now seen corresponding path program 1 times [2020-09-21 12:11:31,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:31,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803032787] [2020-09-21 12:11:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:31,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:32,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:32,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-21 12:11:33,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:11:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1589 [2020-09-21 12:11:33,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:11:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-21 12:11:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 12:11:33,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,810 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:33,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:33,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:11:33,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:33,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:33,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:33,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:33,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:33,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:33,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:33,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:33,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:33,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:33,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:11:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:33,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:33,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:33,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:33,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:33,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:33,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:11:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:33,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-21 12:11:34,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:11:34,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:11:34,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:11:34,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:11:34,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 12:11:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:11:34,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:11:34,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:11:34,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:34,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:11:34,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:11:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:34,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:34,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:34,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:11:34,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:34,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:34,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:34,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:34,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 12:11:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:11:34,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:11:34,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:11:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:34,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:34,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:34,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:11:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:34,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:34,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 12:11:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:34,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:11:34,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:11:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:11:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:11:34,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 12:11:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 12:11:34,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:11:34,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:11:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:11:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:11:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 12:11:34,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:11:34,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:11:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:11:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:34,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:34,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:34,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:34,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:11:34,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:11:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1