/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:24:21,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:24:21,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:24:21,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:24:21,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:24:21,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:24:21,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:24:21,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:24:21,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:24:21,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:24:21,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:24:21,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:24:21,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:24:21,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:24:21,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:24:21,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:24:21,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:24:21,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:24:21,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:24:21,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:24:21,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:24:21,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:24:21,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:24:21,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:24:21,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:24:21,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:24:21,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:24:21,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:24:21,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:24:21,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:24:21,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:24:21,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:24:21,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:24:21,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:24:21,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:24:21,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:24:21,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:24:21,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:24:21,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:24:21,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:24:21,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:24:21,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:24:21,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:24:21,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:24:21,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:24:21,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:24:21,323 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:24:21,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:24:21,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:24:21,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:24:21,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:24:21,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:24:21,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:24:21,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:24:21,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:24:21,327 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:24:21,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:24:21,327 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:24:21,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:24:21,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:24:21,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:24:21,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:24:21,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:24:21,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:24:21,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:24:21,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:24:21,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:24:21,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:24:21,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:24:21,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:24:21,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:24:21,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:24:21,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:24:21,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:24:21,816 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:24:21,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:24:21,818 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:24:21,819 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-25 06:24:21,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5c05bbaf/345b30aa1a2143129bad280aff136302/FLAGafd0393b6 [2020-09-25 06:24:22,464 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:24:22,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-25 06:24:22,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5c05bbaf/345b30aa1a2143129bad280aff136302/FLAGafd0393b6 [2020-09-25 06:24:22,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5c05bbaf/345b30aa1a2143129bad280aff136302 [2020-09-25 06:24:22,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:24:22,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:24:22,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:24:22,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:24:22,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:24:22,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:24:22" (1/1) ... [2020-09-25 06:24:22,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:22, skipping insertion in model container [2020-09-25 06:24:22,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:24:22" (1/1) ... [2020-09-25 06:24:22,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:24:22,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:24:23,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:24:23,241 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:24:23,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:24:23,473 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:24:23,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23 WrapperNode [2020-09-25 06:24:23,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:24:23,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:24:23,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:24:23,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:24:23,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... [2020-09-25 06:24:23,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:24:23,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:24:23,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:24:23,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:24:23,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:24:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:24:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:24:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:24:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:24:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:24:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:24:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:24:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:24:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:24:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:24:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:24:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:24:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:24:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:24:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:24:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:24:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:24:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:24:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:24:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:24:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:24:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:24:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:24:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:24:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:24:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:24:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:24:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:24:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:24:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:24:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:24:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:24:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:24:23,661 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:24:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:24:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:24:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:24:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:24:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:24:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:24:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:24:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:24:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:24:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:24:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:24:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:24:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:24:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:24:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:24:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:24:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:24:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:24:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:24:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:24:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:24:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:24:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:24:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:24:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:24:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:24:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:24:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:24:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:24:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:24:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:24:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:24:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:24:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:24:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:24:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:24:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:24:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:24:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:24:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:24:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:24:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:24:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:24:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:24:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:24:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:24:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:24:24,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:24:24,940 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:24:24,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:24:24 BoogieIcfgContainer [2020-09-25 06:24:24,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:24:24,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:24:24,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:24:24,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:24:24,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:24:22" (1/3) ... [2020-09-25 06:24:24,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bb3eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:24:24, skipping insertion in model container [2020-09-25 06:24:24,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:24:23" (2/3) ... [2020-09-25 06:24:24,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bb3eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:24:24, skipping insertion in model container [2020-09-25 06:24:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:24:24" (3/3) ... [2020-09-25 06:24:24,964 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-09-25 06:24:24,977 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:24:24,991 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:24:25,017 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:24:25,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:24:25,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:24:25,061 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:24:25,061 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:24:25,061 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:24:25,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:24:25,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:24:25,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:24:25,105 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-25 06:24:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:24:25,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:25,146 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] [2020-09-25 06:24:25,146 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1612013966, now seen corresponding path program 1 times [2020-09-25 06:24:25,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:25,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617276481] [2020-09-25 06:24:25,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:25,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:25,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:30,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:30,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:24:30,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:24:30,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 06:24:30,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:30,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:24:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:30,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:24:31,062 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:31,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:31,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 06:24:31,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:31,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:31,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:31,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:31,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:24:31,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:31,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:31,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:24:31,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:31,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:31,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:24:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:31,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:31,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:24:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:31,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:24:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:31,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:31,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:31,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:31,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:24:31,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:31,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:24:31,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617276481] [2020-09-25 06:24:31,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:31,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:24:31,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269662660] [2020-09-25 06:24:31,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:24:31,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:31,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:24:31,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:24:31,522 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-09-25 06:24:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:33,218 INFO L93 Difference]: Finished difference Result 523 states and 625 transitions. [2020-09-25 06:24:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:24:33,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:24:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:33,245 INFO L225 Difference]: With dead ends: 523 [2020-09-25 06:24:33,246 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 06:24:33,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:24:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 06:24:33,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 276. [2020-09-25 06:24:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 06:24:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 303 transitions. [2020-09-25 06:24:33,433 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 303 transitions. Word has length 153 [2020-09-25 06:24:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:33,444 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 303 transitions. [2020-09-25 06:24:33,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:24:33,444 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 303 transitions. [2020-09-25 06:24:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:24:33,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:33,453 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] [2020-09-25 06:24:33,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:24:33,453 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:33,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:33,457 INFO L82 PathProgramCache]: Analyzing trace with hash -178714613, now seen corresponding path program 1 times [2020-09-25 06:24:33,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:33,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594155276] [2020-09-25 06:24:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:33,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:38,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:38,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:24:38,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:24:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 06:24:38,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:38,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:24:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:24:38,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:38,886 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:38,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:38,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:38,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:38,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:38,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:24:38,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:38,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:38,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:39,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:39,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:39,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:39,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:39,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:24:39,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:39,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:39,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:24:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:39,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:39,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:39,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:24:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:39,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:39,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:39,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:24:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:39,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:39,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:39,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:39,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:39,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:39,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:39,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:39,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:39,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:39,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:39,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:24:39,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594155276] [2020-09-25 06:24:39,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:39,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:24:39,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313911712] [2020-09-25 06:24:39,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:24:39,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:39,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:24:39,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:24:39,117 INFO L87 Difference]: Start difference. First operand 276 states and 303 transitions. Second operand 4 states. [2020-09-25 06:24:39,822 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:24:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:41,067 INFO L93 Difference]: Finished difference Result 434 states and 492 transitions. [2020-09-25 06:24:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:24:41,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:24:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:41,079 INFO L225 Difference]: With dead ends: 434 [2020-09-25 06:24:41,079 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 06:24:41,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:24:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 06:24:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 266. [2020-09-25 06:24:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-25 06:24:41,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2020-09-25 06:24:41,142 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 154 [2020-09-25 06:24:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:41,143 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2020-09-25 06:24:41,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:24:41,143 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2020-09-25 06:24:41,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 06:24:41,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:41,146 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 06:24:41,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:24:41,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:41,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:41,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1820602845, now seen corresponding path program 1 times [2020-09-25 06:24:41,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:41,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030758238] [2020-09-25 06:24:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:45,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:45,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 06:24:45,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:24:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3947 [2020-09-25 06:24:45,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:45,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:24:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 06:24:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:24:45,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:45,630 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:45,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:45,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:45,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:45,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 06:24:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:45,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:24:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:24:45,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:45,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:45,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:45,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:45,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:45,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:45,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:45,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:45,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:46,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:46,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:46,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:46,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:46,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:46,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:46,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:46,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:46,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:46,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:24:46,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:46,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:46,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:46,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:46,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:46,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:46,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:46,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:24:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:46,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:46,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:46,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:46,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:46,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:46,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:24:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:46,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:46,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:46,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:46,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:46,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 06:24:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:46,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:46,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:46,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:46,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:46,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:46,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:46,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:24:46,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030758238] [2020-09-25 06:24:46,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:46,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:24:46,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185705968] [2020-09-25 06:24:46,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:24:46,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:46,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:24:46,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:24:46,099 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand 4 states. [2020-09-25 06:24:46,574 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:24:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:48,452 INFO L93 Difference]: Finished difference Result 630 states and 725 transitions. [2020-09-25 06:24:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:24:48,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 06:24:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:48,458 INFO L225 Difference]: With dead ends: 630 [2020-09-25 06:24:48,459 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 06:24:48,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:24:48,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 06:24:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 416. [2020-09-25 06:24:48,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-25 06:24:48,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 465 transitions. [2020-09-25 06:24:48,526 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 465 transitions. Word has length 163 [2020-09-25 06:24:48,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:48,527 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 465 transitions. [2020-09-25 06:24:48,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:24:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 465 transitions. [2020-09-25 06:24:48,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 06:24:48,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:48,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:48,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:24:48,531 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:48,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:48,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1334837787, now seen corresponding path program 1 times [2020-09-25 06:24:48,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:48,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054903009] [2020-09-25 06:24:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:48,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:50,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:50,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:24:50,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:50,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1732 [2020-09-25 06:24:50,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:50,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:24:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:24:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:24:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:24:50,645 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:50,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:50,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:50,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:50,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:50,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:50,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 06:24:50,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:50,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:50,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:50,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:50,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:24:50,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:50,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:50,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:50,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:50,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:50,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:50,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:50,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:50,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:50,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:50,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:50,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:24:51,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:51,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:51,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:24:51,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:24:51,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:51,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:51,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:51,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:24:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:24:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:24:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:51,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:24:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:51,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:51,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:51,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:24:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:51,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:24:51,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:24:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:51,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:24:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:51,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:24:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:51,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:51,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:51,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:51,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:51,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:51,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:51,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:51,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:24:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:24:51,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054903009] [2020-09-25 06:24:51,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:51,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:24:51,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907936842] [2020-09-25 06:24:51,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:24:51,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:51,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:24:51,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:24:51,211 INFO L87 Difference]: Start difference. First operand 416 states and 465 transitions. Second operand 10 states. [2020-09-25 06:24:51,754 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:24:53,878 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:54,241 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:54,598 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:54,930 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:24:55,239 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:24:55,558 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:55,845 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:56,310 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:57,508 INFO L93 Difference]: Finished difference Result 1131 states and 1400 transitions. [2020-09-25 06:24:57,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:24:57,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 06:24:57,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:57,521 INFO L225 Difference]: With dead ends: 1131 [2020-09-25 06:24:57,522 INFO L226 Difference]: Without dead ends: 825 [2020-09-25 06:24:57,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:24:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-09-25 06:24:57,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 693. [2020-09-25 06:24:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-09-25 06:24:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 800 transitions. [2020-09-25 06:24:57,630 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 800 transitions. Word has length 172 [2020-09-25 06:24:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:57,631 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 800 transitions. [2020-09-25 06:24:57,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:24:57,632 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 800 transitions. [2020-09-25 06:24:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 06:24:57,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:57,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:57,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:24:57,637 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:57,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:57,637 INFO L82 PathProgramCache]: Analyzing trace with hash 654753658, now seen corresponding path program 1 times [2020-09-25 06:24:57,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:57,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298118719] [2020-09-25 06:24:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:24:57,705 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:24:57,705 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:24:57,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:24:57,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:24:57 BoogieIcfgContainer [2020-09-25 06:24:57,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:24:57,742 INFO L168 Benchmark]: Toolchain (without parser) took 34989.17 ms. Allocated memory was 148.4 MB in the beginning and 642.3 MB in the end (delta: 493.9 MB). Free memory was 103.8 MB in the beginning and 265.8 MB in the end (delta: -161.9 MB). Peak memory consumption was 331.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:57,743 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.6 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:24:57,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.51 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.0 MB in the beginning and 175.3 MB in the end (delta: -72.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:57,745 INFO L168 Benchmark]: Boogie Preprocessor took 101.10 ms. Allocated memory is still 206.0 MB. Free memory was 175.3 MB in the beginning and 171.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:57,746 INFO L168 Benchmark]: RCFGBuilder took 1376.06 ms. Allocated memory was 206.0 MB in the beginning and 234.9 MB in the end (delta: 28.8 MB). Free memory was 171.4 MB in the beginning and 172.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:57,747 INFO L168 Benchmark]: TraceAbstraction took 32786.17 ms. Allocated memory was 234.9 MB in the beginning and 642.3 MB in the end (delta: 407.4 MB). Free memory was 170.9 MB in the beginning and 265.8 MB in the end (delta: -94.9 MB). Peak memory consumption was 312.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:57,750 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.6 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.51 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.0 MB in the beginning and 175.3 MB in the end (delta: -72.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.10 ms. Allocated memory is still 206.0 MB. Free memory was 175.3 MB in the beginning and 171.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1376.06 ms. Allocated memory was 206.0 MB in the beginning and 234.9 MB in the end (delta: 28.8 MB). Free memory was 171.4 MB in the beginning and 172.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32786.17 ms. Allocated memory was 234.9 MB in the beginning and 642.3 MB in the end (delta: 407.4 MB). Free memory was 170.9 MB in the beginning and 265.8 MB in the end (delta: -94.9 MB). Peak memory consumption was 312.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) [L577] CALL waterRise() [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 [L577] RET waterRise() [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) [L603] CALL stopSystem() [L828] COND FALSE !(\read(pumpRunning)) [L835] systemActive = 0 [L603] RET stopSystem() [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND FALSE !(\read(systemActive)) [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L942] RET, EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L948] RET, EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L952] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L952] RET, EXPR isPumpRunning() [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) [L958] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1060 SDtfs, 1364 SDslu, 821 SDs, 0 SdLazy, 2352 SolverSat, 503 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 273 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 263617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...