/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=1.0 --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:35:24,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:35:24,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:35:24,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:35:24,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:35:24,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:35:24,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:35:24,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:35:24,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:35:24,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:35:24,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:35:24,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:35:24,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:35:24,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:35:24,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:35:24,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:35:24,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:35:24,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:35:24,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:35:24,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:35:24,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:35:24,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:35:24,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:35:24,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:35:24,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:35:24,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:35:24,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:35:24,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:35:24,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:35:24,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:35:24,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:35:24,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:35:24,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:35:24,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:35:24,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:35:24,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:35:24,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:35:24,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:35:24,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:35:24,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:35:24,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:35:24,373 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 08:35:24,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:35:24,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:35:24,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:35:24,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:35:24,403 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:35:24,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:35:24,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:35:24,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:35:24,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:35:24,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:35:24,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:35:24,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:35:24,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:35:24,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:35:24,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:35:24,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:35:24,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:35:24,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:35:24,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:35:24,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:35:24,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:35:24,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:35:24,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:35:24,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:35:24,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:35:24,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:35:24,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:35:24,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:35:24,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:35:24,408 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:35:24,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:35:24,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:35:24,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:35:24,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:35:24,934 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:35:24,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 08:35:25,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f032375/2db6d6a2bbcc40bdaa7d580facf34b2d/FLAGf14ba713c [2020-09-25 08:35:25,690 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:35:25,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 08:35:25,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f032375/2db6d6a2bbcc40bdaa7d580facf34b2d/FLAGf14ba713c [2020-09-25 08:35:25,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f032375/2db6d6a2bbcc40bdaa7d580facf34b2d [2020-09-25 08:35:25,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:35:25,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:35:25,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:35:25,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:35:25,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:35:25,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:35:25" (1/1) ... [2020-09-25 08:35:25,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbadd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:25, skipping insertion in model container [2020-09-25 08:35:25,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:35:25" (1/1) ... [2020-09-25 08:35:26,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:35:26,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:35:26,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:35:26,571 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:35:26,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:35:26,734 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:35:26,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26 WrapperNode [2020-09-25 08:35:26,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:35:26,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:35:26,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:35:26,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:35:26,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (1/1) ... [2020-09-25 08:35:26,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:35:26,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:35:26,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:35:26,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:35:26,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (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 08:35:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:35:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:35:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:35:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:35:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:35:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:35:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:35:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:35:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:35:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:35:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:35:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:35:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:35:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:35:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:35:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:35:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:35:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:35:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:35:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:35:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:35:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:35:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:35:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:35:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:35:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:35:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:35:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:35:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:35:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:35:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:35:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:35:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:35:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:35:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:35:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:35:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:35:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:35:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:35:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:35:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:35:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:35:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:35:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:35:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:35:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:35:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:35:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:35:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:35:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:35:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:35:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:35:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:35:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:35:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:35:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:35:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:35:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:35:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:35:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:35:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:35:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:35:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:35:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:35:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:35:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:35:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:35:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:35:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:35:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:35:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:35:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:35:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:35:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:35:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:35:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:35:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:35:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:35:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:35:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:35:28,109 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:35:28,109 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:35:28,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:35:28 BoogieIcfgContainer [2020-09-25 08:35:28,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:35:28,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:35:28,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:35:28,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:35:28,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:35:25" (1/3) ... [2020-09-25 08:35:28,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea6a2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:35:28, skipping insertion in model container [2020-09-25 08:35:28,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:35:26" (2/3) ... [2020-09-25 08:35:28,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea6a2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:35:28, skipping insertion in model container [2020-09-25 08:35:28,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:35:28" (3/3) ... [2020-09-25 08:35:28,126 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-25 08:35:28,139 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:35:28,150 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:35:28,168 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:35:28,196 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:35:28,197 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:35:28,197 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:35:28,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:35:28,197 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:35:28,197 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:35:28,197 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:35:28,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:35:28,226 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 08:35:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:35:28,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:28,245 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 08:35:28,246 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:28,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:28,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-25 08:35:28,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:28,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477403103] [2020-09-25 08:35:28,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:29,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:33,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:33,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:35:33,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:35:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 08:35:33,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:33,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:35:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:35:34,126 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:34,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:34,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 08:35:34,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:35:34,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:34,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:34,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:34,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:34,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:34,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:34,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:34,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:35:34,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:35:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:34,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:34,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:34,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:35:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:34,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:34,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:34,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:35:34,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:35:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:34,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:34,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:34,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:34,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:34,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:34,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:34,613 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 08:35:34,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477403103] [2020-09-25 08:35:34,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:34,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:35:34,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156531795] [2020-09-25 08:35:34,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:35:34,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:34,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:35:34,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:35:34,658 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-09-25 08:35:36,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:36,103 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-25 08:35:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:35:36,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:35:36,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:36,127 INFO L225 Difference]: With dead ends: 448 [2020-09-25 08:35:36,127 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 08:35:36,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:35:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 08:35:36,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 08:35:36,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 08:35:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 08:35:36,273 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-25 08:35:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:36,276 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 08:35:36,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:35:36,276 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 08:35:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:35:36,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:36,291 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 08:35:36,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:35:36,291 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:36,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:36,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1951375081, now seen corresponding path program 1 times [2020-09-25 08:35:36,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:36,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144657038] [2020-09-25 08:35:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:36,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:36,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:38,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:38,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:40,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:35:41,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:35:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 08:35:41,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:35:41,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:35:41,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,706 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:41,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:41,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 08:35:41,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:41,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:41,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:41,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:41,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:41,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:41,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:41,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:41,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:41,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:41,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:41,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:41,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:35:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:41,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:41,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:35:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:41,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:41,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:41,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:41,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:41,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:41,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:41,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:41,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:41,961 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 08:35:41,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144657038] [2020-09-25 08:35:41,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:41,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:35:41,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432177851] [2020-09-25 08:35:41,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:35:41,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:41,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:35:41,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:35:41,967 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-25 08:35:42,619 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:43,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:43,411 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-25 08:35:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:35:43,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:35:43,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:43,416 INFO L225 Difference]: With dead ends: 352 [2020-09-25 08:35:43,416 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 08:35:43,418 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 08:35:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 08:35:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-25 08:35:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 08:35:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 08:35:43,475 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-25 08:35:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:43,476 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 08:35:43,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:35:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 08:35:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:35:43,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:43,478 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] [2020-09-25 08:35:43,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:35:43,479 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:43,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:43,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1408786884, now seen corresponding path program 1 times [2020-09-25 08:35:43,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:43,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983846210] [2020-09-25 08:35:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:43,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:43,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:44,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:44,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:48,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:48,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:35:48,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:35:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 08:35:48,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:48,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:35:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:35:48,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:48,943 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:48,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:48,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:49,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 08:35:49,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:49,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:49,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:49,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:49,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:49,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:49,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:35:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:35:49,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:49,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:35:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:35:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:49,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:35:49,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:35:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:49,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:49,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:49,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:49,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:49,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:49,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:49,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:49,178 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 08:35:49,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983846210] [2020-09-25 08:35:49,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:49,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:35:49,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217350430] [2020-09-25 08:35:49,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:35:49,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:49,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:35:49,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:35:49,183 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-25 08:35:49,747 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:35:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:51,390 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-25 08:35:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:35:51,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:35:51,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:51,397 INFO L225 Difference]: With dead ends: 536 [2020-09-25 08:35:51,397 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 08:35:51,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:35:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 08:35:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-25 08:35:51,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 08:35:51,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-25 08:35:51,462 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-25 08:35:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:51,462 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-25 08:35:51,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:35:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-25 08:35:51,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:35:51,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:51,465 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 08:35:51,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:35:51,465 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:51,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1641209859, now seen corresponding path program 1 times [2020-09-25 08:35:51,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:51,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941937623] [2020-09-25 08:35:51,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:52,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:55,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:56,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:56,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:35:56,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:35:56,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:35:56,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:56,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:35:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:35:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 08:35:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:35:56,937 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:56,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:57,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 08:35:57,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:57,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:35:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:57,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:57,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:57,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:57,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:57,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:57,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:35:57,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:57,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:35:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:35:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:35:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:57,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:35:57,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:35:57,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:57,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:35:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:57,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:57,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:57,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:57,423 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 08:35:57,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941937623] [2020-09-25 08:35:57,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:57,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:35:57,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133020149] [2020-09-25 08:35:57,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:35:57,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:57,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:35:57,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:35:57,426 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-25 08:35:57,883 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:35:59,283 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:59,614 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:59,980 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:00,309 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:00,617 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:00,914 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:01,220 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:01,717 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:02,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:02,728 INFO L93 Difference]: Finished difference Result 886 states and 1053 transitions. [2020-09-25 08:36:02,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:36:02,729 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:36:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:02,735 INFO L225 Difference]: With dead ends: 886 [2020-09-25 08:36:02,736 INFO L226 Difference]: Without dead ends: 662 [2020-09-25 08:36:02,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 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 08:36:02,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-09-25 08:36:02,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 531. [2020-09-25 08:36:02,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-25 08:36:02,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 590 transitions. [2020-09-25 08:36:02,822 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 590 transitions. Word has length 161 [2020-09-25 08:36:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:02,823 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 590 transitions. [2020-09-25 08:36:02,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:36:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 590 transitions. [2020-09-25 08:36:02,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:36:02,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:02,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:36:02,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:36:02,827 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:02,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:02,827 INFO L82 PathProgramCache]: Analyzing trace with hash 804799078, now seen corresponding path program 1 times [2020-09-25 08:36:02,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:02,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278994841] [2020-09-25 08:36:02,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:02,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:36:05,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:36:05,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2516 [2020-09-25 08:36:05,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:36:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:36:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:36:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:05,744 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:05,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:05,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 08:36:05,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:05,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:05,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:05,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:05,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:05,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:05,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:05,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:05,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:05,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:05,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:05,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:05,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:05,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:05,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:05,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:36:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:05,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:05,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:36:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:05,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:36:05,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:36:05,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:36:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:05,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:36:05,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:05,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 08:36:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:05,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:05,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:36:05,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:05,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:36:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:06,035 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 08:36:06,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278994841] [2020-09-25 08:36:06,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:06,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:36:06,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835967137] [2020-09-25 08:36:06,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:36:06,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:06,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:36:06,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:36:06,037 INFO L87 Difference]: Start difference. First operand 531 states and 590 transitions. Second operand 10 states. [2020-09-25 08:36:06,623 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:08,110 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:36:08,408 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:36:08,780 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:09,158 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:36:09,499 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:10,090 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:10,393 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:10,814 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:11,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:11,760 INFO L93 Difference]: Finished difference Result 1470 states and 1792 transitions. [2020-09-25 08:36:11,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:36:11,761 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-25 08:36:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:11,769 INFO L225 Difference]: With dead ends: 1470 [2020-09-25 08:36:11,769 INFO L226 Difference]: Without dead ends: 1049 [2020-09-25 08:36:11,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 08:36:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-09-25 08:36:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 831. [2020-09-25 08:36:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-09-25 08:36:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 954 transitions. [2020-09-25 08:36:11,904 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 954 transitions. Word has length 166 [2020-09-25 08:36:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:11,905 INFO L479 AbstractCegarLoop]: Abstraction has 831 states and 954 transitions. [2020-09-25 08:36:11,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:36:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 954 transitions. [2020-09-25 08:36:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 08:36:11,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:11,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:36:11,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:36:11,910 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:11,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:11,910 INFO L82 PathProgramCache]: Analyzing trace with hash 633475050, now seen corresponding path program 1 times [2020-09-25 08:36:11,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:11,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261812441] [2020-09-25 08:36:11,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:12,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:12,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 748 [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:36:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 08:36:12,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:36:12,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,022 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:13,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:13,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 08:36:13,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:13,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:13,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:13,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:13,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:13,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:13,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:13,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:13,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:36:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:13,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:13,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:36:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:36:13,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:13,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:36:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 08:36:13,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:36:13,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:36:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:36:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:36:13,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:36:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:36:13,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 08:36:13,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:36:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:36:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:13,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:36:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:36:13,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:36:13,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:36:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:36:13,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:13,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 08:36:13,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:13,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 08:36:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:13,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:13,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:13,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:13,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 08:36:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:13,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:13,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:13,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:13,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:13,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:13,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:13,488 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 08:36:13,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261812441] [2020-09-25 08:36:13,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:13,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:36:13,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498814399] [2020-09-25 08:36:13,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:36:13,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:13,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:36:13,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:36:13,491 INFO L87 Difference]: Start difference. First operand 831 states and 954 transitions. Second operand 11 states. [2020-09-25 08:36:15,027 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:15,346 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189