/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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:36:17,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:36:17,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:36:17,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:36:17,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:36:17,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:36:17,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:36:17,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:36:17,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:36:17,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:36:17,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:36:17,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:36:17,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:36:17,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:36:17,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:36:17,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:36:17,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:36:17,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:36:17,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:36:17,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:36:17,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:36:17,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:36:17,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:36:17,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:36:17,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:36:17,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:36:17,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:36:17,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:36:17,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:36:17,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:36:17,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:36:17,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:36:17,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:36:17,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:36:17,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:36:17,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:36:17,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:36:17,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:36:17,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:36:17,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:36:17,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:36:17,407 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 08:36:17,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:36:17,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:36:17,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:36:17,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:36:17,435 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:36:17,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:36:17,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:36:17,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:36:17,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:36:17,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:36:17,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:36:17,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:36:17,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:36:17,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:36:17,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:36:17,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:36:17,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:36:17,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:36:17,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:36:17,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:36:17,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:36:17,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:36:17,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:36:17,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:36:17,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:36:17,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:36:17,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:36:17,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:36:17,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:36:17,440 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 08:36:17,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:36:17,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:36:17,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:36:17,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:36:17,952 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:36:17,953 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-09-25 08:36:18,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/690d0cf10/09334653db764476a1e36b5dc9f42db9/FLAG109bdcb2f [2020-09-25 08:36:18,675 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:36:18,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-09-25 08:36:18,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/690d0cf10/09334653db764476a1e36b5dc9f42db9/FLAG109bdcb2f [2020-09-25 08:36:18,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/690d0cf10/09334653db764476a1e36b5dc9f42db9 [2020-09-25 08:36:18,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:36:18,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:36:18,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:36:18,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:36:18,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:36:18,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:36:18" (1/1) ... [2020-09-25 08:36:18,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200f4d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:18, skipping insertion in model container [2020-09-25 08:36:18,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:36:18" (1/1) ... [2020-09-25 08:36:18,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:36:19,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:36:19,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:36:19,580 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:36:19,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:36:19,702 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:36:19,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19 WrapperNode [2020-09-25 08:36:19,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:36:19,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:36:19,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:36:19,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:36:19,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (1/1) ... [2020-09-25 08:36:19,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:36:19,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:36:19,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:36:19,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:36:19,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (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 08:36:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:36:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:36:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:36:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:36:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:36:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:36:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:36:19,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:36:19,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:36:19,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:36:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:36:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:36:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:36:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:36:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:36:19,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:36:19,936 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:36:19,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:36:19,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:36:19,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:36:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:36:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:36:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:36:19,939 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:36:19,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:36:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:36:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:36:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:36:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:36:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:36:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:36:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:36:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:36:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:36:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:36:19,943 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:36:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:36:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:36:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:36:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:36:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:36:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:36:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:36:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:36:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:36:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:36:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:36:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:36:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:36:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:36:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:36:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:36:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:36:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:36:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:36:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:36:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:36:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:36:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:36:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:36:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:36:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:36:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:36:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:36:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:36:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:36:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:36:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:36:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:36:21,292 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:36:21,292 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:36:21,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:36:21 BoogieIcfgContainer [2020-09-25 08:36:21,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:36:21,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:36:21,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:36:21,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:36:21,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:36:18" (1/3) ... [2020-09-25 08:36:21,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ede92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:36:21, skipping insertion in model container [2020-09-25 08:36:21,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:36:19" (2/3) ... [2020-09-25 08:36:21,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ede92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:36:21, skipping insertion in model container [2020-09-25 08:36:21,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:36:21" (3/3) ... [2020-09-25 08:36:21,312 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-09-25 08:36:21,324 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:36:21,337 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:36:21,362 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:36:21,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:36:21,402 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:36:21,402 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:36:21,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:36:21,402 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:36:21,402 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:36:21,403 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:36:21,403 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:36:21,437 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-09-25 08:36:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:36:21,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:21,458 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 08:36:21,459 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash 254159831, now seen corresponding path program 1 times [2020-09-25 08:36:21,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:21,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254219305] [2020-09-25 08:36:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:22,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:22,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:24,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:26,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:26,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:26,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:36:26,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:36:26,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:36:26,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:26,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:36:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:36:27,290 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:27,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:27,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 08:36:27,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:27,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:27,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:27,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:27,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:27,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:36:27,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:27,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:27,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:36:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:27,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:27,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:36:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:27,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:27,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:27,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:27,576 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 08:36:27,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254219305] [2020-09-25 08:36:27,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:27,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:36:27,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315293027] [2020-09-25 08:36:27,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:36:27,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:27,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:36:27,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:36:27,617 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2020-09-25 08:36:29,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:29,498 INFO L93 Difference]: Finished difference Result 512 states and 609 transitions. [2020-09-25 08:36:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:36:29,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:36:29,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:29,522 INFO L225 Difference]: With dead ends: 512 [2020-09-25 08:36:29,522 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 08:36:29,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:36:29,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 08:36:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-09-25 08:36:29,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 08:36:29,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2020-09-25 08:36:29,684 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142 [2020-09-25 08:36:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:29,685 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2020-09-25 08:36:29,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:36:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2020-09-25 08:36:29,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:36:29,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:29,695 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 08:36:29,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:36:29,695 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:29,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:29,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1230709371, now seen corresponding path program 1 times [2020-09-25 08:36:29,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:29,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050306790] [2020-09-25 08:36:29,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:29,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:29,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:31,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:34,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:34,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:36:34,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:36:34,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:36:34,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:34,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:36:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:36:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,041 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:35,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:35,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 08:36:35,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:35,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:35,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:35,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:35,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:35,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:36:35,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:35,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:35,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:35,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:35,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:36:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:35,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:35,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:35,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:36:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:35,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:35,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:35,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:35,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:35,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:35,242 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 08:36:35,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050306790] [2020-09-25 08:36:35,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:35,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:36:35,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135869281] [2020-09-25 08:36:35,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:36:35,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:35,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:36:35,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:36:35,247 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states. [2020-09-25 08:36:35,875 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:36,958 INFO L93 Difference]: Finished difference Result 419 states and 472 transitions. [2020-09-25 08:36:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:36:36,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:36:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:36,964 INFO L225 Difference]: With dead ends: 419 [2020-09-25 08:36:36,964 INFO L226 Difference]: Without dead ends: 298 [2020-09-25 08:36:36,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:36:36,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-25 08:36:37,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-09-25 08:36:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 08:36:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-09-25 08:36:37,023 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-09-25 08:36:37,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:37,024 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-09-25 08:36:37,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:36:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-09-25 08:36:37,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:36:37,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:37,027 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 08:36:37,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:36:37,027 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:37,028 INFO L82 PathProgramCache]: Analyzing trace with hash -11881279, now seen corresponding path program 1 times [2020-09-25 08:36:37,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:37,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661343123] [2020-09-25 08:36:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:37,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:37,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:38,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:38,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:36:42,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:36:42,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 08:36:42,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:36:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:36:42,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,473 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:42,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 08:36:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:42,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:42,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:42,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:42,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:42,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:36:42,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:36:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:36:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:36:42,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:36:42,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:36:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:36:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:42,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:42,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 08:36:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:36:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:42,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:42,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:36:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:42,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:42,786 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 08:36:42,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661343123] [2020-09-25 08:36:42,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:42,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:36:42,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594579796] [2020-09-25 08:36:42,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:36:42,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:42,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:36:42,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:36:42,795 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 5 states. [2020-09-25 08:36:43,298 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:45,191 INFO L93 Difference]: Finished difference Result 633 states and 733 transitions. [2020-09-25 08:36:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:36:45,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:36:45,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:45,206 INFO L225 Difference]: With dead ends: 633 [2020-09-25 08:36:45,206 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 08:36:45,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:36:45,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 08:36:45,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402. [2020-09-25 08:36:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 08:36:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 445 transitions. [2020-09-25 08:36:45,314 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 445 transitions. Word has length 156 [2020-09-25 08:36:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:45,315 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 445 transitions. [2020-09-25 08:36:45,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:36:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 445 transitions. [2020-09-25 08:36:45,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:36:45,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:45,318 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 08:36:45,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:36:45,318 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:45,319 INFO L82 PathProgramCache]: Analyzing trace with hash -409466612, now seen corresponding path program 1 times [2020-09-25 08:36:45,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:45,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043364288] [2020-09-25 08:36:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:45,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:46,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:47,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:50,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:50,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:36:50,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 08:36:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:36:50,826 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:36:50,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:36:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:50,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:36:51,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 08:36:51,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:51,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:36:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:36:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:51,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:51,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:36:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:36:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:51,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:36:51,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:51,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:36:51,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:36:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:51,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:36:51,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:36:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:36:51,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:51,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:51,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:36:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:36:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:36:51,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:36:51,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:36:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:36:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:36:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:51,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:36:51,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:36:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:36:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:36:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:36:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:51,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:51,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:36:51,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:36:51,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:36:51,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:36:51,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:36:51,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:36:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:36:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:36:51,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:36:51,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:36:51,349 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 08:36:51,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043364288] [2020-09-25 08:36:51,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:36:51,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:36:51,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069543082] [2020-09-25 08:36:51,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:36:51,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:36:51,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:36:51,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:36:51,353 INFO L87 Difference]: Start difference. First operand 402 states and 445 transitions. Second operand 9 states. [2020-09-25 08:36:51,877 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:53,316 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:53,902 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 08:36:54,315 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:54,653 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:36:54,963 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:36:55,262 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:36:55,582 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:36:56,174 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:36:57,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:36:57,388 INFO L93 Difference]: Finished difference Result 1098 states and 1305 transitions. [2020-09-25 08:36:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:36:57,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:36:57,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:36:57,398 INFO L225 Difference]: With dead ends: 1098 [2020-09-25 08:36:57,398 INFO L226 Difference]: Without dead ends: 806 [2020-09-25 08:36:57,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:36:57,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-09-25 08:36:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 667. [2020-09-25 08:36:57,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-09-25 08:36:57,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 750 transitions. [2020-09-25 08:36:57,506 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 750 transitions. Word has length 161 [2020-09-25 08:36:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:36:57,507 INFO L479 AbstractCegarLoop]: Abstraction has 667 states and 750 transitions. [2020-09-25 08:36:57,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:36:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 750 transitions. [2020-09-25 08:36:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:36:57,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:36:57,510 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 08:36:57,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:36:57,511 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:36:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:36:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1234625458, now seen corresponding path program 1 times [2020-09-25 08:36:57,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:36:57,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555109651] [2020-09-25 08:36:57,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:36:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:36:57,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:57,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:36:58,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:00,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:00,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:37:00,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:37:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2816 [2020-09-25 08:37:00,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:00,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:37:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:37:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:37:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:00,766 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:37:00,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:00,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:00,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:00,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:37:00,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 08:37:00,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:00,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:37:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:00,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:00,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:00,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:00,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:00,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:00,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:00,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:37:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:00,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:00,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:00,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:00,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:00,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:00,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:00,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:37:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:00,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:00,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:00,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:00,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:37:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:00,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:00,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:00,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:00,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:00,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:00,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:00,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:01,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:37:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:01,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:01,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:01,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:37:01,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:01,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:37:01,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:01,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:37:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:01,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:01,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:01,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:37:01,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:01,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:37:01,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:01,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:01,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:37:01,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:01,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:37:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:01,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:01,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:01,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:01,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:37:01,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:01,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:01,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 08:37:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:01,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:01,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:01,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:01,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:01,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:37:01,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:01,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:37:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:01,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:01,129 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 08:37:01,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555109651] [2020-09-25 08:37:01,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:37:01,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:37:01,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586752079] [2020-09-25 08:37:01,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:37:01,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:01,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:37:01,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:37:01,132 INFO L87 Difference]: Start difference. First operand 667 states and 750 transitions. Second operand 10 states. [2020-09-25 08:37:01,656 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:03,101 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:37:03,465 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:03,816 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:37:04,178 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:37:04,513 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:37:05,225 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:37:05,548 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:37:05,921 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:37:06,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:37:06,940 INFO L93 Difference]: Finished difference Result 1792 states and 2203 transitions. [2020-09-25 08:37:06,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:37:06,940 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-25 08:37:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:37:06,948 INFO L225 Difference]: With dead ends: 1792 [2020-09-25 08:37:06,948 INFO L226 Difference]: Without dead ends: 1235 [2020-09-25 08:37:06,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 08:37:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2020-09-25 08:37:07,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 999. [2020-09-25 08:37:07,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-09-25 08:37:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1154 transitions. [2020-09-25 08:37:07,152 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1154 transitions. Word has length 166 [2020-09-25 08:37:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:37:07,153 INFO L479 AbstractCegarLoop]: Abstraction has 999 states and 1154 transitions. [2020-09-25 08:37:07,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:37:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1154 transitions. [2020-09-25 08:37:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 08:37:07,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:07,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:37:07,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:37:07,161 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:07,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1793051015, now seen corresponding path program 1 times [2020-09-25 08:37:07,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:07,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359960641] [2020-09-25 08:37:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY