/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:58:55,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:58:56,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:58:56,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:58:56,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:58:56,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:58:56,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:58:56,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:58:56,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:58:56,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:58:56,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:58:56,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:58:56,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:58:56,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:58:56,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:58:56,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:58:56,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:58:56,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:58:56,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:58:56,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:58:56,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:58:56,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:58:56,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:58:56,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:58:56,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:58:56,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:58:56,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:58:56,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:58:56,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:58:56,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:58:56,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:58:56,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:58:56,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:58:56,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:58:56,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:58:56,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:58:56,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:58:56,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:58:56,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:58:56,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:58:56,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:58:56,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:58:56,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:58:56,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:58:56,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:58:56,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:58:56,176 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:58:56,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:58:56,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:58:56,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:58:56,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:58:56,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:58:56,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:58:56,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:58:56,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:58:56,179 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:58:56,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:58:56,180 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:58:56,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:58:56,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:58:56,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:58:56,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:58:56,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:58:56,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:58:56,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:58:56,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:58:56,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:58:56,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:58:56,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:58:56,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:58:56,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:58:56,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:58:56,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:58:56,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:58:56,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:58:56,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:58:56,682 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:58:56,683 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-25 11:58:56,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed4208a3a/49661841e77e4aa88468c6515cc5c0ed/FLAG5df582ac8 [2020-09-25 11:58:57,413 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:58:57,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-25 11:58:57,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed4208a3a/49661841e77e4aa88468c6515cc5c0ed/FLAG5df582ac8 [2020-09-25 11:58:57,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed4208a3a/49661841e77e4aa88468c6515cc5c0ed [2020-09-25 11:58:57,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:58:57,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:58:57,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:57,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:58:57,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:58:57,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:58:57" (1/1) ... [2020-09-25 11:58:57,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b8030e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:57, skipping insertion in model container [2020-09-25 11:58:57,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:58:57" (1/1) ... [2020-09-25 11:58:57,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:58:57,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:58:58,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:58,309 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:58:58,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:58,481 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:58:58,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58 WrapperNode [2020-09-25 11:58:58,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:58,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:58:58,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:58:58,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:58:58,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... [2020-09-25 11:58:58,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:58:58,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:58:58,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:58:58,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:58:58,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:58:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:58:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:58:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:58:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:58:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:58:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:58:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:58:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:58:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 11:58:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:58:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:58:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:58:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:58:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:58:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:58:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:58:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:58:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 11:58:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:58:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:58:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:58:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:58:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:58:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:58:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:58:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:58:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:58:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:58:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:58:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:58:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:58:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:58:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:58:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:58:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:58:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:58:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:58:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:58:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:58:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:58:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:58:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:58:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:58:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:58:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:58:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:58:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:58:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:58:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:58:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:58:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:58:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:58:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:58:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:58:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:58:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:58:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:58:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:58:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:58:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:58:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:58:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:58:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:58:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:58:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:58:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:58:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:58:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 11:58:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:58:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:58:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:58:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:58:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:58:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:58:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:58:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:58:59,833 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:58:59,834 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:58:59,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:59 BoogieIcfgContainer [2020-09-25 11:58:59,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:58:59,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:58:59,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:58:59,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:58:59,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:58:57" (1/3) ... [2020-09-25 11:58:59,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594c6358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:59, skipping insertion in model container [2020-09-25 11:58:59,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:58" (2/3) ... [2020-09-25 11:58:59,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594c6358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:59, skipping insertion in model container [2020-09-25 11:58:59,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:59" (3/3) ... [2020-09-25 11:58:59,853 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-25 11:58:59,866 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:58:59,878 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:58:59,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:58:59,938 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:58:59,938 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:58:59,938 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:58:59,939 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:58:59,939 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:58:59,939 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:58:59,939 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:58:59,939 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:58:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-25 11:58:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:58:59,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:59,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:59,994 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:00,004 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-25 11:59:00,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:00,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110892430] [2020-09-25 11:59:00,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:02,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:05,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:05,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:59:05,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:59:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 11:59:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:05,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:59:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:59:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 11:59:05,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 11:59:05,894 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:05,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:06,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 11:59:06,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:06,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:06,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:06,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:06,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:06,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:06,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:06,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:06,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:06,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:59:06,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:06,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:06,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:06,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:06,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:59:06,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:06,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:06,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:06,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:06,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:59:06,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:59:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:06,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:06,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:06,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:06,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:06,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:06,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:06,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110892430] [2020-09-25 11:59:06,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:06,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:59:06,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844814261] [2020-09-25 11:59:06,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:59:06,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:06,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:59:06,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:59:06,628 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 4 states. [2020-09-25 11:59:07,313 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:10,134 INFO L93 Difference]: Finished difference Result 769 states and 933 transitions. [2020-09-25 11:59:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:59:10,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 11:59:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:10,162 INFO L225 Difference]: With dead ends: 769 [2020-09-25 11:59:10,162 INFO L226 Difference]: Without dead ends: 538 [2020-09-25 11:59:10,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:59:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-09-25 11:59:10,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 462. [2020-09-25 11:59:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-09-25 11:59:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 521 transitions. [2020-09-25 11:59:10,351 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 521 transitions. Word has length 142 [2020-09-25 11:59:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:10,352 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 521 transitions. [2020-09-25 11:59:10,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:59:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 521 transitions. [2020-09-25 11:59:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:59:10,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:10,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:10,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:59:10,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:10,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1051348659, now seen corresponding path program 1 times [2020-09-25 11:59:10,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:10,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468707425] [2020-09-25 11:59:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:10,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:10,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:11,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 11:59:15,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:59:15,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 11:59:15,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 11:59:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:59:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:59:15,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,789 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:15,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:16,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 11:59:16,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:59:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:16,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:16,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:16,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:16,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:16,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:16,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:16,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:16,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:59:16,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 11:59:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 11:59:16,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:59:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:59:16,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:59:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:59:16,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:59:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:16,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:59:16,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:59:16,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:16,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:59:16,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:59:16,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:16,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:59:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:59:16,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:16,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:16,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:59:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:16,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:16,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 11:59:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:16,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:16,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:16,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468707425] [2020-09-25 11:59:16,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:16,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:59:16,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778063876] [2020-09-25 11:59:16,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:59:16,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:16,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:59:16,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:59:16,387 INFO L87 Difference]: Start difference. First operand 462 states and 521 transitions. Second operand 6 states. [2020-09-25 11:59:16,947 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:18,704 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:20,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:20,426 INFO L93 Difference]: Finished difference Result 1230 states and 1524 transitions. [2020-09-25 11:59:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:59:20,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 11:59:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:20,439 INFO L225 Difference]: With dead ends: 1230 [2020-09-25 11:59:20,439 INFO L226 Difference]: Without dead ends: 878 [2020-09-25 11:59:20,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:59:20,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-09-25 11:59:20,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 733. [2020-09-25 11:59:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-09-25 11:59:20,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 835 transitions. [2020-09-25 11:59:20,568 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 835 transitions. Word has length 161 [2020-09-25 11:59:20,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:20,569 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 835 transitions. [2020-09-25 11:59:20,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:59:20,569 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 835 transitions. [2020-09-25 11:59:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:59:20,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:20,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:20,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:59:20,573 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:20,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:20,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1953483698, now seen corresponding path program 1 times [2020-09-25 11:59:20,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:20,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911021338] [2020-09-25 11:59:20,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:20,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:22,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 11:59:25,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:59:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 11:59:25,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:59:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:59:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 11:59:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,965 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:25,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:59:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:26,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:26,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:26,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:26,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:26,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:26,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:26,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:26,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 11:59:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:26,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:26,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:26,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:59:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:26,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 11:59:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:26,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:26,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:26,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911021338] [2020-09-25 11:59:26,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:26,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:59:26,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383743938] [2020-09-25 11:59:26,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:59:26,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:26,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:59:26,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:59:26,401 INFO L87 Difference]: Start difference. First operand 733 states and 835 transitions. Second operand 9 states. [2020-09-25 11:59:26,912 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:28,055 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:28,367 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:28,703 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:29,008 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:29,301 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:29,653 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:29,941 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:30,421 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:33,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:33,089 INFO L93 Difference]: Finished difference Result 2084 states and 2544 transitions. [2020-09-25 11:59:33,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:59:33,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 11:59:33,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:33,101 INFO L225 Difference]: With dead ends: 2084 [2020-09-25 11:59:33,101 INFO L226 Difference]: Without dead ends: 1381 [2020-09-25 11:59:33,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:59:33,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2020-09-25 11:59:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1231. [2020-09-25 11:59:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2020-09-25 11:59:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1392 transitions. [2020-09-25 11:59:33,323 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1392 transitions. Word has length 161 [2020-09-25 11:59:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:33,324 INFO L479 AbstractCegarLoop]: Abstraction has 1231 states and 1392 transitions. [2020-09-25 11:59:33,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:59:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1392 transitions. [2020-09-25 11:59:33,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 11:59:33,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:33,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:33,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:59:33,331 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:33,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:33,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1356616012, now seen corresponding path program 1 times [2020-09-25 11:59:33,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:33,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655244019] [2020-09-25 11:59:33,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:33,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:34,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:36,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:36,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 11:59:36,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:59:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2844 [2020-09-25 11:59:36,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:36,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:36,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:59:36,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:59:36,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 11:59:36,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:36,731 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:36,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:36,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:37,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 11:59:37,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:59:37,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:37,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:37,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:37,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:59:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:37,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:37,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:59:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:37,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:37,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:37,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:37,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 11:59:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:37,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:37,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:59:37,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:59:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:59:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 11:59:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:37,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:37,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 11:59:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:37,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:37,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:37,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:37,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:59:37,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:37,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:37,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:37,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:37,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:37,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655244019] [2020-09-25 11:59:37,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:37,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:59:37,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187808441] [2020-09-25 11:59:37,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:59:37,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:37,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:59:37,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:59:37,466 INFO L87 Difference]: Start difference. First operand 1231 states and 1392 transitions. Second operand 11 states. [2020-09-25 11:59:38,207 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:39,597 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:39,920 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:40,233 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:40,607 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:59:40,946 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:41,792 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:42,121 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:42,498 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:44,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:44,676 INFO L93 Difference]: Finished difference Result 1630 states and 1983 transitions. [2020-09-25 11:59:44,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 11:59:44,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 11:59:44,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:44,691 INFO L225 Difference]: With dead ends: 1630 [2020-09-25 11:59:44,691 INFO L226 Difference]: Without dead ends: 1627 [2020-09-25 11:59:44,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-25 11:59:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2020-09-25 11:59:44,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1231. [2020-09-25 11:59:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2020-09-25 11:59:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1390 transitions. [2020-09-25 11:59:44,902 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1390 transitions. Word has length 166 [2020-09-25 11:59:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:44,902 INFO L479 AbstractCegarLoop]: Abstraction has 1231 states and 1390 transitions. [2020-09-25 11:59:44,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:59:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1390 transitions. [2020-09-25 11:59:44,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 11:59:44,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:44,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:44,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:59:44,909 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:44,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:44,910 INFO L82 PathProgramCache]: Analyzing trace with hash 515628642, now seen corresponding path program 1 times [2020-09-25 11:59:44,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:44,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932200797] [2020-09-25 11:59:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:45,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:45,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 11:59:45,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-09-25 11:59:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:45,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 11:59:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:59:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0