/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:26:15,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:26:15,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:26:15,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:26:15,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:26:15,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:26:15,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:26:15,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:26:15,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:26:15,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:26:15,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:26:15,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:26:15,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:26:15,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:26:15,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:26:15,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:26:15,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:26:15,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:26:15,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:26:15,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:26:15,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:26:15,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:26:15,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:26:15,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:26:15,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:26:15,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:26:15,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:26:15,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:26:15,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:26:15,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:26:15,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:26:15,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:26:15,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:26:15,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:26:15,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:26:15,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:26:15,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:26:15,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:26:15,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:26:15,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:26:15,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:26:15,367 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 07:26:15,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:26:15,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:26:15,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:26:15,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:26:15,415 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:26:15,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:26:15,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:26:15,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:26:15,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:26:15,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:26:15,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:26:15,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:26:15,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:26:15,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:26:15,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:26:15,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:26:15,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:26:15,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:26:15,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:26:15,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:26:15,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:26:15,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:26:15,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:26:15,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:26:15,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:26:15,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:26:15,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:26:15,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:26:15,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:26:15,422 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:26:15,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:26:15,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:26:15,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:26:15,944 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:26:15,945 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:26:15,946 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-25 07:26:16,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8eec8c24/88a16b7bd5e84a489cf8f83872fd4caa/FLAGf8a396795 [2020-09-25 07:26:16,646 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:26:16,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-25 07:26:16,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8eec8c24/88a16b7bd5e84a489cf8f83872fd4caa/FLAGf8a396795 [2020-09-25 07:26:16,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8eec8c24/88a16b7bd5e84a489cf8f83872fd4caa [2020-09-25 07:26:17,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:26:17,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:26:17,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:17,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:26:17,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:26:17,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:16" (1/1) ... [2020-09-25 07:26:17,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c51fb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17, skipping insertion in model container [2020-09-25 07:26:17,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:16" (1/1) ... [2020-09-25 07:26:17,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:26:17,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:26:17,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:17,576 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:26:17,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:17,701 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:26:17,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17 WrapperNode [2020-09-25 07:26:17,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:17,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:26:17,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:26:17,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:26:17,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:17,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:26:17,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:26:17,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:26:17,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:26:17,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (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 07:26:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:26:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:26:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:26:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:26:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:26:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:26:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:26:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:26:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:26:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:26:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:26:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:26:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:26:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:26:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:26:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:26:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:26:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:26:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:26:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:26:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:26:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:26:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:26:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:26:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:26:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:26:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:26:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:26:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:26:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:26:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:26:17,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:26:17,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:26:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:26:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:26:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:26:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:26:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:26:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:26:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:26:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:26:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:26:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:26:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:26:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:26:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:26:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:26:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:26:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:26:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:26:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:26:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:26:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:26:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:26:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:26:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:26:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:26:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:26:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:26:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:26:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:26:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:26:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:26:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:26:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:26:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:26:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:26:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:26:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:26:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:26:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:26:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:26:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:26:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:26:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:26:19,040 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:26:19,040 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:26:19,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:19 BoogieIcfgContainer [2020-09-25 07:26:19,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:26:19,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:26:19,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:26:19,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:26:19,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:26:16" (1/3) ... [2020-09-25 07:26:19,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5f321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:19, skipping insertion in model container [2020-09-25 07:26:19,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:17" (2/3) ... [2020-09-25 07:26:19,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5f321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:19, skipping insertion in model container [2020-09-25 07:26:19,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:19" (3/3) ... [2020-09-25 07:26:19,057 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-25 07:26:19,068 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:26:19,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:26:19,102 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:26:19,134 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:26:19,135 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:26:19,135 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:26:19,135 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:26:19,135 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:26:19,135 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:26:19,135 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:26:19,136 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:26:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-25 07:26:19,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:26:19,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:19,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:19,183 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:19,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:19,190 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-09-25 07:26:19,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:19,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434866217] [2020-09-25 07:26:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:19,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:19,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:21,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:22,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:23,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:24,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:24,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:26:24,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:26:24,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:24,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:26:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:26:25,129 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:25,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:25,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 07:26:25,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:25,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:25,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:25,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:25,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:25,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:25,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:25,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:25,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:26:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:25,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:25,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:26:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:25,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:25,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:25,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:26:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:25,578 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 07:26:25,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434866217] [2020-09-25 07:26:25,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:25,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:26:25,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53728732] [2020-09-25 07:26:25,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:26:25,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:25,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:26:25,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:25,613 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2020-09-25 07:26:26,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:26,946 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-09-25 07:26:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:26:26,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:26:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:26,970 INFO L225 Difference]: With dead ends: 439 [2020-09-25 07:26:26,970 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 07:26:26,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 07:26:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-09-25 07:26:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-25 07:26:27,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-25 07:26:27,164 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-09-25 07:26:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:27,166 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-25 07:26:27,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:26:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-25 07:26:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:26:27,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:27,180 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] [2020-09-25 07:26:27,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:26:27,180 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:27,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1453121021, now seen corresponding path program 1 times [2020-09-25 07:26:27,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:27,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650188233] [2020-09-25 07:26:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:27,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:27,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:28,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:29,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:26:32,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:32,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:26:32,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:26:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:26:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,555 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:32,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:32,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 07:26:32,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:32,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:32,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:32,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:32,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:32,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:32,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:32,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:32,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:26:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:32,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:32,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:32,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:26:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:32,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:32,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:32,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:32,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:32,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:32,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:32,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:32,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:32,756 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 07:26:32,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650188233] [2020-09-25 07:26:32,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:32,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:26:32,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010314155] [2020-09-25 07:26:32,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:26:32,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:32,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:26:32,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:26:32,760 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-09-25 07:26:33,404 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:34,178 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-09-25 07:26:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:26:34,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:26:34,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:34,183 INFO L225 Difference]: With dead ends: 347 [2020-09-25 07:26:34,183 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 07:26:34,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:26:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 07:26:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-09-25 07:26:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-25 07:26:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-09-25 07:26:34,225 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-09-25 07:26:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:34,226 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-09-25 07:26:34,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:26:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-09-25 07:26:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 07:26:34,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:34,229 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] [2020-09-25 07:26:34,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:26:34,229 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:34,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1038765417, now seen corresponding path program 1 times [2020-09-25 07:26:34,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:34,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274091654] [2020-09-25 07:26:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:35,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:35,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:39,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:39,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:26:39,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:26:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:26:39,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:39,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:26:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:26:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 07:26:39,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:39,627 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:39,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:39,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:39,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:39,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 07:26:39,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:39,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:26:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:39,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:39,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:40,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:40,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:40,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:40,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:40,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:40,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:40,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:40,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:40,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:26:40,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:40,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:40,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:40,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:40,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:40,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:40,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:40,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:26:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:40,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:40,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:26:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:40,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:40,220 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 07:26:40,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274091654] [2020-09-25 07:26:40,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:40,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:26:40,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139471852] [2020-09-25 07:26:40,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:26:40,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:40,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:26:40,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:26:40,223 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 5 states. [2020-09-25 07:26:40,861 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:41,587 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:42,845 INFO L93 Difference]: Finished difference Result 585 states and 671 transitions. [2020-09-25 07:26:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:26:42,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-09-25 07:26:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:42,851 INFO L225 Difference]: With dead ends: 585 [2020-09-25 07:26:42,851 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 07:26:42,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:26:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 07:26:42,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 394. [2020-09-25 07:26:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 07:26:42,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 436 transitions. [2020-09-25 07:26:42,921 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 436 transitions. Word has length 152 [2020-09-25 07:26:42,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:42,922 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 436 transitions. [2020-09-25 07:26:42,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:26:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 436 transitions. [2020-09-25 07:26:42,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:26:42,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:42,924 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] [2020-09-25 07:26:42,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:26:42,925 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:42,925 INFO L82 PathProgramCache]: Analyzing trace with hash -66041728, now seen corresponding path program 1 times [2020-09-25 07:26:42,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:42,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532475537] [2020-09-25 07:26:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:43,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:43,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:45,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:45,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:47,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:47,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 07:26:47,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:47,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 07:26:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:47,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:26:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:26:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:47,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,261 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:48,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:48,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 07:26:48,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:48,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:48,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:48,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:48,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:48,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:48,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:48,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:48,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:48,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:26:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:26:48,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:26:48,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:26:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:26:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:26:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:48,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:26:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:48,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:48,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:26:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:48,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:48,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:48,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:26:48,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:48,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:48,599 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 07:26:48,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532475537] [2020-09-25 07:26:48,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:48,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:26:48,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315969099] [2020-09-25 07:26:48,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:26:48,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:48,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:26:48,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:26:48,603 INFO L87 Difference]: Start difference. First operand 394 states and 436 transitions. Second operand 7 states. [2020-09-25 07:26:49,094 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:50,571 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:51,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:51,162 INFO L93 Difference]: Finished difference Result 984 states and 1157 transitions. [2020-09-25 07:26:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:26:51,165 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-25 07:26:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:51,172 INFO L225 Difference]: With dead ends: 984 [2020-09-25 07:26:51,172 INFO L226 Difference]: Without dead ends: 700 [2020-09-25 07:26:51,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:26:51,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-25 07:26:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 584. [2020-09-25 07:26:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-09-25 07:26:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 646 transitions. [2020-09-25 07:26:51,261 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 646 transitions. Word has length 160 [2020-09-25 07:26:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:51,262 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 646 transitions. [2020-09-25 07:26:51,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:26:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 646 transitions. [2020-09-25 07:26:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:26:51,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:51,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:51,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:26:51,265 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:51,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1164437593, now seen corresponding path program 1 times [2020-09-25 07:26:51,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:51,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174255780] [2020-09-25 07:26:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:51,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 07:26:56,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:26:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:56,660 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:56,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:56,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 07:26:56,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:56,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:56,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:56,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:56,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:56,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:56,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:56,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:56,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:56,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:56,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:56,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:56,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:26:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:26:56,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:56,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:26:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:56,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:26:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:56,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:56,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:56,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:26:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:56,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:56,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:56,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:56,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:26:56,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:56,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:56,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:26:56,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:56,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:56,908 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 07:26:56,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174255780] [2020-09-25 07:26:56,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:56,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:26:56,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123195734] [2020-09-25 07:26:56,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:26:56,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:56,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:26:56,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:26:56,911 INFO L87 Difference]: Start difference. First operand 584 states and 646 transitions. Second operand 9 states. [2020-09-25 07:26:57,460 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:58,705 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:26:59,031 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:26:59,370 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:59,726 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:27:00,046 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:27:00,560 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:00,873 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:01,189 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:01,765 INFO L93 Difference]: Finished difference Result 669 states and 756 transitions. [2020-09-25 07:27:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:27:01,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 07:27:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:01,773 INFO L225 Difference]: With dead ends: 669 [2020-09-25 07:27:01,773 INFO L226 Difference]: Without dead ends: 666 [2020-09-25 07:27:01,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:27:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-09-25 07:27:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 584. [2020-09-25 07:27:01,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-09-25 07:27:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 643 transitions. [2020-09-25 07:27:01,848 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 643 transitions. Word has length 161 [2020-09-25 07:27:01,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:01,849 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 643 transitions. [2020-09-25 07:27:01,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:27:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 643 transitions. [2020-09-25 07:27:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 07:27:01,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:01,852 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] [2020-09-25 07:27:01,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:27:01,852 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:01,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:01,853 INFO L82 PathProgramCache]: Analyzing trace with hash 684340345, now seen corresponding path program 1 times [2020-09-25 07:27:01,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:01,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145407004] [2020-09-25 07:27:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:02,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking...