/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_spec2_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:38:04,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:38:04,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:38:04,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:38:04,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:38:04,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:38:04,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:38:04,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:38:04,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:38:04,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:38:04,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:38:04,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:38:04,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:38:04,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:38:04,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:38:04,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:38:04,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:38:04,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:38:04,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:38:04,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:38:04,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:38:04,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:38:04,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:38:04,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:38:04,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:38:04,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:38:04,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:38:04,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:38:04,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:38:04,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:38:04,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:38:04,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:38:04,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:38:04,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:38:04,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:38:04,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:38:04,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:38:04,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:38:04,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:38:04,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:38:04,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:38:04,307 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 08:38:04,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:38:04,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:38:04,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:38:04,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:38:04,350 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:38:04,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:38:04,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:38:04,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:38:04,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:38:04,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:38:04,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:38:04,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:38:04,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:38:04,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:38:04,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:38:04,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:38:04,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:38:04,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:38:04,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:38:04,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:38:04,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:38:04,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:38:04,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:38:04,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:38:04,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:38:04,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:38:04,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:38:04,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:38:04,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:38:04,356 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 08:38:04,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:38:04,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:38:04,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:38:04,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:38:04,856 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:38:04,857 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product23.cil.c [2020-09-25 08:38:04,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37e5897a/2331d56ae2664d468f2e4b89275bbd5d/FLAG68b371e0b [2020-09-25 08:38:05,583 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:38:05,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product23.cil.c [2020-09-25 08:38:05,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37e5897a/2331d56ae2664d468f2e4b89275bbd5d/FLAG68b371e0b [2020-09-25 08:38:05,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37e5897a/2331d56ae2664d468f2e4b89275bbd5d [2020-09-25 08:38:05,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:38:05,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:38:05,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:38:05,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:38:05,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:38:05,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:05" (1/1) ... [2020-09-25 08:38:05,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:05, skipping insertion in model container [2020-09-25 08:38:05,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:05" (1/1) ... [2020-09-25 08:38:05,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:38:05,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:38:06,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:38:06,368 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:38:06,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:38:06,636 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:38:06,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06 WrapperNode [2020-09-25 08:38:06,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:38:06,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:38:06,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:38:06,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:38:06,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (1/1) ... [2020-09-25 08:38:06,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:38:06,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:38:06,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:38:06,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:38:06,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (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 08:38:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:38:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:38:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:38:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:38:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:38:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:38:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:38:06,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:38:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:38:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:38:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:38:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:38:06,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:38:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:38:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:38:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:38:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:38:06,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:38:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:38:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:38:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:38:06,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:38:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 08:38:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:38:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:38:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:38:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:38:06,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:38:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:38:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:38:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:38:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:38:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:38:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:38:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:38:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:38:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:38:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:38:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:38:06,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:38:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:38:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:38:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:38:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:38:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:38:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:38:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:38:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:38:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:38:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:38:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:38:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:38:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:38:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:38:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:38:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:38:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:38:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:38:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:38:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:38:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:38:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:38:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:38:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:38:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:38:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:38:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:38:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:38:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:38:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 08:38:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:38:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:38:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:38:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:38:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:38:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:38:08,105 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:38:08,105 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:38:08,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:08 BoogieIcfgContainer [2020-09-25 08:38:08,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:38:08,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:38:08,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:38:08,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:38:08,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:38:05" (1/3) ... [2020-09-25 08:38:08,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52839d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:08, skipping insertion in model container [2020-09-25 08:38:08,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:06" (2/3) ... [2020-09-25 08:38:08,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52839d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:08, skipping insertion in model container [2020-09-25 08:38:08,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:08" (3/3) ... [2020-09-25 08:38:08,134 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2020-09-25 08:38:08,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:38:08,164 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:38:08,187 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:38:08,230 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:38:08,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:38:08,230 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:38:08,231 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:38:08,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:38:08,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:38:08,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:38:08,232 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:38:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 08:38:08,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:38:08,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:08,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:08,314 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:08,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:08,326 INFO L82 PathProgramCache]: Analyzing trace with hash -912612790, now seen corresponding path program 1 times [2020-09-25 08:38:08,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:08,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795389001] [2020-09-25 08:38:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:08,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:09,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:10,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:12,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:38:13,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 08:38:13,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:38:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 08:38:14,211 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:14,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 08:38:14,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:14,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:14,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:14,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:14,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:14,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:38:14,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:14,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:14,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:14,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:14,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:14,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:38:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:14,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:14,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:14,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:14,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:14,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:14,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:14,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:14,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:14,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:14,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:14,565 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 08:38:14,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795389001] [2020-09-25 08:38:14,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:14,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:38:14,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629531726] [2020-09-25 08:38:14,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:38:14,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:14,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:38:14,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:14,608 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2020-09-25 08:38:16,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:16,067 INFO L93 Difference]: Finished difference Result 483 states and 578 transitions. [2020-09-25 08:38:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:38:16,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:38:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:16,091 INFO L225 Difference]: With dead ends: 483 [2020-09-25 08:38:16,091 INFO L226 Difference]: Without dead ends: 309 [2020-09-25 08:38:16,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-25 08:38:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 259. [2020-09-25 08:38:16,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 08:38:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 284 transitions. [2020-09-25 08:38:16,209 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 284 transitions. Word has length 148 [2020-09-25 08:38:16,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:16,210 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 284 transitions. [2020-09-25 08:38:16,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:38:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 284 transitions. [2020-09-25 08:38:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:38:16,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:16,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:16,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:38:16,215 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:16,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:16,216 INFO L82 PathProgramCache]: Analyzing trace with hash -718639911, now seen corresponding path program 1 times [2020-09-25 08:38:16,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:16,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549686108] [2020-09-25 08:38:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:16,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:16,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:17,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:18,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:19,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:20,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:38:21,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:38:21,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 08:38:21,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:38:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:38:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,654 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:21,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:21,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 08:38:21,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:21,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:21,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:21,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:21,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:38:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:21,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,888 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 08:38:21,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549686108] [2020-09-25 08:38:21,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:21,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:38:21,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204757227] [2020-09-25 08:38:21,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:38:21,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:21,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:38:21,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:38:21,893 INFO L87 Difference]: Start difference. First operand 259 states and 284 transitions. Second operand 5 states. [2020-09-25 08:38:22,675 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:23,836 INFO L93 Difference]: Finished difference Result 406 states and 465 transitions. [2020-09-25 08:38:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:38:23,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:38:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:23,843 INFO L225 Difference]: With dead ends: 406 [2020-09-25 08:38:23,843 INFO L226 Difference]: Without dead ends: 298 [2020-09-25 08:38:23,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:38:23,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-25 08:38:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 249. [2020-09-25 08:38:23,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 08:38:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 271 transitions. [2020-09-25 08:38:23,907 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 271 transitions. Word has length 149 [2020-09-25 08:38:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:23,908 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 271 transitions. [2020-09-25 08:38:23,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:38:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 271 transitions. [2020-09-25 08:38:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 08:38:23,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:23,915 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] [2020-09-25 08:38:23,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:38:23,916 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:23,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1279747045, now seen corresponding path program 1 times [2020-09-25 08:38:23,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:23,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995413658] [2020-09-25 08:38:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:24,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:24,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:25,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:26,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:28,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:28,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 08:38:28,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:38:28,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:28,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:38:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:38:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 08:38:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,391 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:29,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:29,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 08:38:29,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:38:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:29,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:29,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:29,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:29,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:38:29,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:29,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:29,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:29,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:29,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:29,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:29,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:38:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:29,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:38:29,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:38:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:38:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:29,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:29,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:29,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:29,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:29,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,923 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 08:38:29,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995413658] [2020-09-25 08:38:29,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:29,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:38:29,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953348146] [2020-09-25 08:38:29,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:38:29,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:29,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:38:29,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:38:29,929 INFO L87 Difference]: Start difference. First operand 249 states and 271 transitions. Second operand 9 states. [2020-09-25 08:38:30,470 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:31,516 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:31,874 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:38:32,347 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:32,698 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:33,040 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:38:33,378 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:33,734 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:38:34,317 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:38:35,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:35,577 INFO L93 Difference]: Finished difference Result 572 states and 676 transitions. [2020-09-25 08:38:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:38:35,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-25 08:38:35,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:35,583 INFO L225 Difference]: With dead ends: 572 [2020-09-25 08:38:35,583 INFO L226 Difference]: Without dead ends: 438 [2020-09-25 08:38:35,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:38:35,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-25 08:38:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 365. [2020-09-25 08:38:35,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 08:38:35,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 407 transitions. [2020-09-25 08:38:35,653 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 407 transitions. Word has length 158 [2020-09-25 08:38:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:35,654 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 407 transitions. [2020-09-25 08:38:35,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:38:35,654 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 407 transitions. [2020-09-25 08:38:35,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:38:35,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:35,657 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] [2020-09-25 08:38:35,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:38:35,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:35,658 INFO L82 PathProgramCache]: Analyzing trace with hash -487868271, now seen corresponding path program 1 times [2020-09-25 08:38:35,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:35,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100305627] [2020-09-25 08:38:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:35,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:36,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:40,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:40,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 08:38:40,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:38:40,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 08:38:40,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:40,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:38:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 08:38:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 08:38:40,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:41,107 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:41,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:41,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 08:38:41,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:38:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:41,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:41,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:41,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:41,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:41,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:38:41,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:41,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:41,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:41,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:41,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:41,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:38:41,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:38:41,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:38:41,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 08:38:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:41,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:41,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:41,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:38:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:41,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:41,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,616 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 08:38:41,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100305627] [2020-09-25 08:38:41,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:41,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:38:41,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081897951] [2020-09-25 08:38:41,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:38:41,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:41,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:38:41,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:38:41,619 INFO L87 Difference]: Start difference. First operand 365 states and 407 transitions. Second operand 6 states. [2020-09-25 08:38:42,182 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:44,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:44,452 INFO L93 Difference]: Finished difference Result 1002 states and 1195 transitions. [2020-09-25 08:38:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:38:44,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-09-25 08:38:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:44,460 INFO L225 Difference]: With dead ends: 1002 [2020-09-25 08:38:44,460 INFO L226 Difference]: Without dead ends: 752 [2020-09-25 08:38:44,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:38:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-09-25 08:38:44,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 606. [2020-09-25 08:38:44,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-09-25 08:38:44,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 691 transitions. [2020-09-25 08:38:44,563 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 691 transitions. Word has length 163 [2020-09-25 08:38:44,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:44,564 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 691 transitions. [2020-09-25 08:38:44,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:38:44,564 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 691 transitions. [2020-09-25 08:38:44,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 08:38:44,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:44,568 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] [2020-09-25 08:38:44,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:38:44,569 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:44,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:44,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1233096405, now seen corresponding path program 1 times [2020-09-25 08:38:44,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:44,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903487440] [2020-09-25 08:38:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:44,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:45,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:46,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:49,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:49,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:38:49,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:38:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:49,949 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:49,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:49,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:50,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:38:50,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:50,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:50,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:50,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:50,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:50,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:50,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:50,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:50,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:50,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:50,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:50,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:50,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:50,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:50,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:50,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:50,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:50,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:50,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:50,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:38:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:50,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:38:50,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:50,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:38:50,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:50,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 08:38:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:38:50,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:50,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:38:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:50,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:38:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:50,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:50,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:50,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:50,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 08:38:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:50,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:50,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:50,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:50,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:50,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:50,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:50,237 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 08:38:50,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903487440] [2020-09-25 08:38:50,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:50,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:38:50,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372797516] [2020-09-25 08:38:50,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:38:50,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:50,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:38:50,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:38:50,240 INFO L87 Difference]: Start difference. First operand 606 states and 691 transitions. Second operand 7 states. [2020-09-25 08:38:50,754 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189