/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:41:30,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:41:30,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:41:30,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:41:30,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:41:30,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:41:30,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:41:30,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:41:30,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:41:30,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:41:30,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:41:30,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:41:30,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:41:30,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:41:30,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:41:30,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:41:30,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:41:30,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:41:30,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:41:30,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:41:30,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:41:30,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:41:30,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:41:30,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:41:30,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:41:30,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:41:30,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:41:30,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:41:30,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:41:30,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:41:30,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:41:30,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:41:30,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:41:30,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:41:30,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:41:30,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:41:30,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:41:30,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:41:30,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:41:30,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:41:30,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:41:30,953 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 [2020-10-13 12:41:31,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:41:31,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:41:31,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:41:31,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:41:31,002 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:41:31,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:41:31,003 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:41:31,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:41:31,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:41:31,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:41:31,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:41:31,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:41:31,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:41:31,004 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:41:31,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:41:31,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:41:31,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:41:31,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:41:31,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:41:31,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:41:31,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:41:31,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:41:31,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:41:31,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:41:31,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:41:31,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:41:31,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:41:31,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:41:31,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:41:31,007 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:41:31,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:41:31,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:41:31,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:41:31,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:41:31,321 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:41:31,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-10-13 12:41:31,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94950d662/bf8d0e40da1f44ac9ea88190d4251245/FLAG3d3c79d78 [2020-10-13 12:41:31,896 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:41:31,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-10-13 12:41:31,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94950d662/bf8d0e40da1f44ac9ea88190d4251245/FLAG3d3c79d78 [2020-10-13 12:41:32,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94950d662/bf8d0e40da1f44ac9ea88190d4251245 [2020-10-13 12:41:32,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:41:32,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:41:32,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:32,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:41:32,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:41:32,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:32,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32, skipping insertion in model container [2020-10-13 12:41:32,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:32,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:41:32,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:41:32,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:32,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:41:32,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:32,929 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:41:32,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32 WrapperNode [2020-10-13 12:41:32,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:32,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:41:32,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:41:32,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:41:32,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:32,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:32,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:32,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:32,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:33,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:33,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (1/1) ... [2020-10-13 12:41:33,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:41:33,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:41:33,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:41:33,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:41:33,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (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 [2020-10-13 12:41:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:41:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:41:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:41:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:41:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:41:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:41:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:41:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:41:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:41:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:41:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:41:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:41:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:41:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:41:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:41:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-13 12:41:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:41:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:41:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:41:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:41:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:41:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:41:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:41:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:41:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:41:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:41:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:41:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:41:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:41:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:41:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:41:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:41:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:41:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:41:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:41:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:41:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:41:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:41:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:41:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:41:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-13 12:41:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:41:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:41:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:41:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:41:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:41:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:41:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:41:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:41:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:41:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:41:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:41:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:41:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:41:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:41:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:41:34,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:41:34,178 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:41:34,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:34 BoogieIcfgContainer [2020-10-13 12:41:34,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:41:34,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:41:34,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:41:34,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:41:34,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:41:32" (1/3) ... [2020-10-13 12:41:34,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c94a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:34, skipping insertion in model container [2020-10-13 12:41:34,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:32" (2/3) ... [2020-10-13 12:41:34,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c94a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:34, skipping insertion in model container [2020-10-13 12:41:34,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:34" (3/3) ... [2020-10-13 12:41:34,193 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-10-13 12:41:34,203 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:41:34,210 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:41:34,221 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:41:34,241 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:41:34,241 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:41:34,242 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:41:34,242 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:41:34,242 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:41:34,242 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:41:34,242 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:41:34,242 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:41:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-10-13 12:41:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:41:34,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:34,278 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] [2020-10-13 12:41:34,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:34,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:34,285 INFO L82 PathProgramCache]: Analyzing trace with hash 269315160, now seen corresponding path program 1 times [2020-10-13 12:41:34,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:34,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275095378] [2020-10-13 12:41:34,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:34,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:34,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:35,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:41:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2192 [2020-10-13 12:41:36,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:41:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 12:41:37,165 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:37,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:37,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 12:41:37,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 12:41:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:37,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:37,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:37,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:37,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:37,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:37,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:37,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:37,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:37,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:41:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:37,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:37,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:41:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:37,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:37,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:41:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:37,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:37,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:41:37,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:37,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:37,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275095378] [2020-10-13 12:41:37,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:37,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:41:37,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447809512] [2020-10-13 12:41:37,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:41:37,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:37,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:41:37,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:41:37,378 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-10-13 12:41:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:38,501 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-10-13 12:41:38,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:41:38,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:41:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:38,520 INFO L225 Difference]: With dead ends: 249 [2020-10-13 12:41:38,520 INFO L226 Difference]: Without dead ends: 135 [2020-10-13 12:41:38,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:41:38,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-13 12:41:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-10-13 12:41:38,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-13 12:41:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-10-13 12:41:38,622 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 52 [2020-10-13 12:41:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:38,623 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-10-13 12:41:38,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:41:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-10-13 12:41:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:41:38,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:38,627 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] [2020-10-13 12:41:38,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:41:38,627 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:38,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1813296693, now seen corresponding path program 1 times [2020-10-13 12:41:38,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:38,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345344828] [2020-10-13 12:41:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:38,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:38,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:38,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:41:40,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1381 [2020-10-13 12:41:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:41:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:41:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,330 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:40,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:41:40,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:40,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:40,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:40,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:40,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:41:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:40,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:41:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:40,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:40,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:41:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:40,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:40,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345344828] [2020-10-13 12:41:40,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:40,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:41:40,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903325094] [2020-10-13 12:41:40,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:41:40,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:40,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:41:40,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:41:40,426 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-10-13 12:41:40,829 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:41:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:41,406 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-10-13 12:41:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:41:41,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:41:41,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:41,410 INFO L225 Difference]: With dead ends: 182 [2020-10-13 12:41:41,412 INFO L226 Difference]: Without dead ends: 119 [2020-10-13 12:41:41,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:41:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-13 12:41:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-10-13 12:41:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-13 12:41:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-10-13 12:41:41,453 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 53 [2020-10-13 12:41:41,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:41,453 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-10-13 12:41:41,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:41:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-10-13 12:41:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 12:41:41,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:41,455 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] [2020-10-13 12:41:41,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:41:41,456 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:41,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:41,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2099874592, now seen corresponding path program 1 times [2020-10-13 12:41:41,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:41,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323164838] [2020-10-13 12:41:41,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:41,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:41,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:41:42,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:41:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 998 [2020-10-13 12:41:42,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 12:41:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:42,830 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:42,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:42,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 12:41:42,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:41:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:42,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:42,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:42,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:42,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:42,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:42,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:42,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:42,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:41:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:42,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:41:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:42,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:42,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:42,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:42,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:41:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:42,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:42,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:42,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323164838] [2020-10-13 12:41:42,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:42,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:41:42,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215104700] [2020-10-13 12:41:42,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:41:42,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:42,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:41:42,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:41:42,994 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-10-13 12:41:43,300 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:43,911 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-10-13 12:41:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:41:43,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-13 12:41:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:43,914 INFO L225 Difference]: With dead ends: 191 [2020-10-13 12:41:43,914 INFO L226 Difference]: Without dead ends: 119 [2020-10-13 12:41:43,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:41:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-13 12:41:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-10-13 12:41:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-13 12:41:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-10-13 12:41:43,949 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 57 [2020-10-13 12:41:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:43,949 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-10-13 12:41:43,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:41:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-10-13 12:41:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 12:41:43,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:43,951 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] [2020-10-13 12:41:43,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:41:43,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:43,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1251058736, now seen corresponding path program 1 times [2020-10-13 12:41:43,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:43,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577487149] [2020-10-13 12:41:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:44,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 12:41:45,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1609 [2020-10-13 12:41:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:41:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 12:41:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,879 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:45,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:46,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 12:41:46,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:41:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:46,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:46,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:46,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:46,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:46,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:41:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 12:41:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 12:41:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:46,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:41:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:41:46,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:46,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:41:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:46,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:46,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:46,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:46,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 12:41:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:46,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:41:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:41:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:46,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 12:41:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:46,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:46,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:46,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:46,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:46,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:46,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:46,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:46,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577487149] [2020-10-13 12:41:46,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:46,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:41:46,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495893099] [2020-10-13 12:41:46,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:41:46,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:46,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:41:46,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:41:46,124 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 8 states. [2020-10-13 12:41:46,525 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:47,826 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:48,099 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:48,390 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:48,729 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:49,051 INFO L93 Difference]: Finished difference Result 284 states and 375 transitions. [2020-10-13 12:41:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:41:49,053 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-13 12:41:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:49,057 INFO L225 Difference]: With dead ends: 284 [2020-10-13 12:41:49,057 INFO L226 Difference]: Without dead ends: 212 [2020-10-13 12:41:49,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:41:49,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-13 12:41:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 166. [2020-10-13 12:41:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-13 12:41:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 197 transitions. [2020-10-13 12:41:49,108 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 197 transitions. Word has length 65 [2020-10-13 12:41:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:49,108 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 197 transitions. [2020-10-13 12:41:49,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:41:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 197 transitions. [2020-10-13 12:41:49,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 12:41:49,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:49,111 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] [2020-10-13 12:41:49,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:41:49,111 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:49,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1559260886, now seen corresponding path program 1 times [2020-10-13 12:41:49,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:49,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863561804] [2020-10-13 12:41:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:41:49,155 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:41:49,155 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:41:49,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:41:49,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:41:49 BoogieIcfgContainer [2020-10-13 12:41:49,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:41:49,184 INFO L168 Benchmark]: Toolchain (without parser) took 16918.29 ms. Allocated memory was 138.9 MB in the beginning and 515.9 MB in the end (delta: 377.0 MB). Free memory was 100.6 MB in the beginning and 138.1 MB in the end (delta: -37.4 MB). Peak memory consumption was 339.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:49,185 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:41:49,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.79 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 167.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:49,187 INFO L168 Benchmark]: Boogie Preprocessor took 89.26 ms. Allocated memory is still 201.9 MB. Free memory was 167.3 MB in the beginning and 163.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:49,188 INFO L168 Benchmark]: RCFGBuilder took 1163.67 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 163.2 MB in the beginning and 196.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:49,189 INFO L168 Benchmark]: TraceAbstraction took 14996.46 ms. Allocated memory was 233.8 MB in the beginning and 515.9 MB in the end (delta: 282.1 MB). Free memory was 196.1 MB in the beginning and 138.1 MB in the end (delta: 58.0 MB). Peak memory consumption was 340.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:49,193 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.79 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 167.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.26 ms. Allocated memory is still 201.9 MB. Free memory was 167.3 MB in the beginning and 163.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1163.67 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 163.2 MB in the beginning and 196.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14996.46 ms. Allocated memory was 233.8 MB in the beginning and 515.9 MB in the end (delta: 282.1 MB). Free memory was 196.1 MB in the beginning and 138.1 MB in the end (delta: 58.0 MB). Peak memory consumption was 340.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 370 SDtfs, 446 SDslu, 172 SDs, 0 SdLazy, 889 SolverSat, 260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 60850 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...