/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:21:32,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:21:32,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:21:33,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:21:33,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:21:33,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:21:33,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:21:33,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:21:33,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:21:33,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:21:33,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:21:33,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:21:33,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:21:33,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:21:33,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:21:33,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:21:33,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:21:33,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:21:33,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:21:33,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:21:33,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:21:33,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:21:33,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:21:33,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:21:33,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:21:33,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:21:33,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:21:33,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:21:33,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:21:33,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:21:33,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:21:33,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:21:33,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:21:33,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:21:33,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:21:33,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:21:33,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:21:33,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:21:33,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:21:33,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:21:33,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:21:33,099 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 06:21:33,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:21:33,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:21:33,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:21:33,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:21:33,154 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:21:33,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:21:33,155 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:21:33,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:21:33,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:21:33,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:21:33,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:21:33,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:21:33,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:21:33,158 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:21:33,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:21:33,158 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:21:33,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:21:33,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:21:33,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:21:33,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:21:33,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:21:33,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:21:33,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:21:33,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:21:33,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:21:33,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:21:33,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:21:33,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:21:33,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:21:33,161 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:21:33,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:21:33,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:21:33,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:21:33,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:21:33,650 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:21:33,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-25 06:21:33,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/781cf8ea4/1c251e63c53d48b39c6d6c5a4251ad2c/FLAG1e57b57d9 [2020-09-25 06:21:34,308 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:21:34,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-25 06:21:34,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/781cf8ea4/1c251e63c53d48b39c6d6c5a4251ad2c/FLAG1e57b57d9 [2020-09-25 06:21:34,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/781cf8ea4/1c251e63c53d48b39c6d6c5a4251ad2c [2020-09-25 06:21:34,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:21:34,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:21:34,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:21:34,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:21:34,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:21:34,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34, skipping insertion in model container [2020-09-25 06:21:34,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:21:34,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:21:35,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:21:35,164 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:21:35,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:21:35,290 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:21:35,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35 WrapperNode [2020-09-25 06:21:35,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:21:35,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:21:35,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:21:35,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:21:35,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (1/1) ... [2020-09-25 06:21:35,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:21:35,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:21:35,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:21:35,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:21:35,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (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 06:21:35,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:21:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:21:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:21:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:21:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:21:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:21:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:21:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:21:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:21:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:21:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:21:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:21:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:21:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:21:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:21:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:21:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:21:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:21:35,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:21:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:21:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:21:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:21:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:21:35,487 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:21:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:21:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:21:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:21:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:21:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:21:35,488 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:21:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:21:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:21:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:21:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:21:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:21:35,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:21:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:21:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:21:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:21:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:21:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:21:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:21:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:21:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:21:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:21:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:21:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:21:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:21:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:21:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:21:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:21:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:21:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:21:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:21:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:21:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:21:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:21:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:21:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:21:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:21:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:21:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:21:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:21:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:21:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:21:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:21:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:21:36,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:21:36,746 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:21:36,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:21:36 BoogieIcfgContainer [2020-09-25 06:21:36,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:21:36,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:21:36,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:21:36,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:21:36,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:21:34" (1/3) ... [2020-09-25 06:21:36,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400c0a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:21:36, skipping insertion in model container [2020-09-25 06:21:36,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:35" (2/3) ... [2020-09-25 06:21:36,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400c0a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:21:36, skipping insertion in model container [2020-09-25 06:21:36,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:21:36" (3/3) ... [2020-09-25 06:21:36,767 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2020-09-25 06:21:36,780 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:21:36,796 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:21:36,821 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:21:36,868 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:21:36,868 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:21:36,869 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:21:36,869 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:21:36,869 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:21:36,870 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:21:36,870 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:21:36,871 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:21:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-25 06:21:36,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:21:36,964 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:36,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:36,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:36,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:36,977 INFO L82 PathProgramCache]: Analyzing trace with hash -416095138, now seen corresponding path program 1 times [2020-09-25 06:21:36,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:36,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994709933] [2020-09-25 06:21:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:37,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:40,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:41,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:21:42,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:21:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:21:42,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:21:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 06:21:42,921 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:43,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 06:21:43,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:43,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:43,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:43,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:43,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:43,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:43,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:43,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:43,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:43,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:43,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:43,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:21:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:43,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:43,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:43,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:21:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:43,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:43,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:43,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:43,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:43,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:43,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:43,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:43,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:43,347 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 06:21:43,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994709933] [2020-09-25 06:21:43,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:43,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:21:43,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756496289] [2020-09-25 06:21:43,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:21:43,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:43,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:21:43,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:21:43,401 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2020-09-25 06:21:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:44,842 INFO L93 Difference]: Finished difference Result 510 states and 605 transitions. [2020-09-25 06:21:44,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:21:44,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:21:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:44,866 INFO L225 Difference]: With dead ends: 510 [2020-09-25 06:21:44,866 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 06:21:44,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:21:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 06:21:44,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 272. [2020-09-25 06:21:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 06:21:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 297 transitions. [2020-09-25 06:21:44,992 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 297 transitions. Word has length 148 [2020-09-25 06:21:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:44,993 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 297 transitions. [2020-09-25 06:21:44,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:21:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 297 transitions. [2020-09-25 06:21:45,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:21:45,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:45,002 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] [2020-09-25 06:21:45,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:21:45,003 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:45,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:45,003 INFO L82 PathProgramCache]: Analyzing trace with hash 795504542, now seen corresponding path program 1 times [2020-09-25 06:21:45,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:45,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124871804] [2020-09-25 06:21:45,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:45,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:45,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:46,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:48,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:21:50,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:21:50,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 06:21:50,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:21:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:21:50,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,439 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:50,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:50,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 06:21:50,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:50,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:50,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:50,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:50,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:50,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:50,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:50,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:50,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:50,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:50,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:50,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:21:50,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:21:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:50,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:21:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:50,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:50,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:50,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:50,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:50,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:50,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:50,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:50,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:50,675 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 06:21:50,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124871804] [2020-09-25 06:21:50,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:50,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:21:50,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898185711] [2020-09-25 06:21:50,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:21:50,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:50,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:21:50,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:21:50,681 INFO L87 Difference]: Start difference. First operand 272 states and 297 transitions. Second operand 5 states. [2020-09-25 06:21:51,319 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:52,468 INFO L93 Difference]: Finished difference Result 435 states and 496 transitions. [2020-09-25 06:21:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:21:52,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:21:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:52,474 INFO L225 Difference]: With dead ends: 435 [2020-09-25 06:21:52,474 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 06:21:52,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:21:52,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 06:21:52,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 262. [2020-09-25 06:21:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 06:21:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-09-25 06:21:52,526 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 149 [2020-09-25 06:21:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:52,527 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-09-25 06:21:52,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:21:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-09-25 06:21:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:21:52,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:52,530 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] [2020-09-25 06:21:52,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:21:52,531 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:52,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:52,531 INFO L82 PathProgramCache]: Analyzing trace with hash 639518028, now seen corresponding path program 1 times [2020-09-25 06:21:52,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:52,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348278915] [2020-09-25 06:21:52,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:52,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:52,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:53,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:53,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:55,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:21:57,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:21:57,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:21:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:21:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,864 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:57,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:57,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 06:21:57,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:58,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:58,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:58,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:58,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:58,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:58,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:58,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:58,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:58,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:58,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:58,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:58,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:58,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:21:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:58,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:58,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:21:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:58,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:58,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:58,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:58,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:58,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:58,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:58,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:58,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:58,132 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 06:21:58,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348278915] [2020-09-25 06:21:58,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:58,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:58,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757581935] [2020-09-25 06:21:58,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:58,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:58,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:58,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:58,135 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 6 states. [2020-09-25 06:21:58,692 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:59,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:59,924 INFO L93 Difference]: Finished difference Result 482 states and 561 transitions. [2020-09-25 06:21:59,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:21:59,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:21:59,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:59,933 INFO L225 Difference]: With dead ends: 482 [2020-09-25 06:21:59,933 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 06:21:59,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:59,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 06:21:59,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 262. [2020-09-25 06:21:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 06:22:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2020-09-25 06:22:00,001 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 162 [2020-09-25 06:22:00,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:00,003 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2020-09-25 06:22:00,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:22:00,003 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2020-09-25 06:22:00,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 06:22:00,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:00,010 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] [2020-09-25 06:22:00,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:22:00,011 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:00,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:00,011 INFO L82 PathProgramCache]: Analyzing trace with hash 477706998, now seen corresponding path program 1 times [2020-09-25 06:22:00,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:00,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241797433] [2020-09-25 06:22:00,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:00,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:00,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:00,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:02,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:03,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:03,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:03,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 06:22:05,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:22:05,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:22:05,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:22:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 06:22:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:22:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,402 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:05,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:05,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:22:05,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:05,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:05,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:05,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:05,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:22:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:05,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:22:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:22:05,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:22:05,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:22:05,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:22:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:22:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:22:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:22:05,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:22:05,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:22:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:22:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:22:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:05,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:22:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 06:22:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:05,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 06:22:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:05,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,797 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 06:22:05,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241797433] [2020-09-25 06:22:05,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:05,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:22:05,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854634937] [2020-09-25 06:22:05,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:22:05,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:05,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:22:05,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:22:05,802 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand 8 states. [2020-09-25 06:22:06,456 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:08,277 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:22:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:09,656 INFO L93 Difference]: Finished difference Result 678 states and 812 transitions. [2020-09-25 06:22:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 06:22:09,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 06:22:09,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:09,662 INFO L225 Difference]: With dead ends: 678 [2020-09-25 06:22:09,662 INFO L226 Difference]: Without dead ends: 531 [2020-09-25 06:22:09,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 06:22:09,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-09-25 06:22:09,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 390. [2020-09-25 06:22:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 06:22:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 422 transitions. [2020-09-25 06:22:09,731 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 422 transitions. Word has length 175 [2020-09-25 06:22:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:09,732 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 422 transitions. [2020-09-25 06:22:09,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:22:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 422 transitions. [2020-09-25 06:22:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 06:22:09,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:09,735 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] [2020-09-25 06:22:09,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:22:09,735 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:09,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:09,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1695038909, now seen corresponding path program 1 times [2020-09-25 06:22:09,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:09,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886947512] [2020-09-25 06:22:09,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:10,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:11,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:22:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:22:14,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 06:22:14,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,141 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:15,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:15,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:15,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:15,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:15,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:22:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:22:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:15,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:15,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:22:15,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:22:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:22:15,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:22:15,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 06:22:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:22:15,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:15,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:22:15,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:22:15,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:22:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:22:15,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:15,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:22:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:15,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:15,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 06:22:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:15,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:15,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:15,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 06:22:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:15,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,478 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 06:22:15,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886947512] [2020-09-25 06:22:15,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:15,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:22:15,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129972744] [2020-09-25 06:22:15,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:22:15,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:15,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:22:15,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:22:15,480 INFO L87 Difference]: Start difference. First operand 390 states and 422 transitions. Second operand 7 states. [2020-09-25 06:22:16,035 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:19,166 INFO L93 Difference]: Finished difference Result 1026 states and 1310 transitions. [2020-09-25 06:22:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:22:19,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-25 06:22:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:19,176 INFO L225 Difference]: With dead ends: 1026 [2020-09-25 06:22:19,176 INFO L226 Difference]: Without dead ends: 1023 [2020-09-25 06:22:19,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:22:19,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2020-09-25 06:22:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 673. [2020-09-25 06:22:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-09-25 06:22:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 748 transitions. [2020-09-25 06:22:19,293 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 748 transitions. Word has length 199 [2020-09-25 06:22:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:19,294 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 748 transitions. [2020-09-25 06:22:19,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:22:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 748 transitions. [2020-09-25 06:22:19,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-09-25 06:22:19,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:19,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:22:19,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:22:19,301 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:19,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:19,302 INFO L82 PathProgramCache]: Analyzing trace with hash 607873768, now seen corresponding path program 1 times [2020-09-25 06:22:19,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:19,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011880503] [2020-09-25 06:22:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:19,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:19,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:20,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:21,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking...