/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 --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:19:10,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 15:19:10,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 15:19:10,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 15:19:10,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 15:19:10,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 15:19:10,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 15:19:10,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 15:19:10,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 15:19:10,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 15:19:10,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 15:19:10,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 15:19:10,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:19:10,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:19:10,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:19:10,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:19:10,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:19:10,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:19:10,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:19:10,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:19:10,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:19:10,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:19:10,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:19:10,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:19:10,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 15:19:10,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 15:19:10,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 15:19:10,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 15:19:10,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 15:19:10,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 15:19:10,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 15:19:10,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 15:19:10,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 15:19:10,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 15:19:10,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 15:19:10,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 15:19:10,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 15:19:10,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 15:19:10,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:19:10,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:19:10,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:19:10,911 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 [2020-08-18 15:19:10,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:19:10,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:19:10,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:19:10,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:19:10,956 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:19:10,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:19:10,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:19:10,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:19:10,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:19:10,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:19:10,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:19:10,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:19:10,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:19:10,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:19:10,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:19:10,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:19:10,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:19:10,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:19:10,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:19:10,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:19:10,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:19:10,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:19:10,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:19:10,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:19:10,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:19:10,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:19:10,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:19:10,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:19:10,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:19:10,963 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.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-18 15:19:11,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:19:11,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:19:11,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:19:11,273 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:19:11,273 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:19:11,274 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-08-18 15:19:11,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21665c87c/947fd44a1b5c46b894040e5ebd743e63/FLAG218427a23 [2020-08-18 15:19:11,858 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:19:11,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-08-18 15:19:11,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21665c87c/947fd44a1b5c46b894040e5ebd743e63/FLAG218427a23 [2020-08-18 15:19:12,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21665c87c/947fd44a1b5c46b894040e5ebd743e63 [2020-08-18 15:19:12,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:19:12,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:19:12,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:19:12,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:19:12,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:19:12,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12, skipping insertion in model container [2020-08-18 15:19:12,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:19:12,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:19:12,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:19:12,697 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:19:12,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:19:12,868 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:19:12,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12 WrapperNode [2020-08-18 15:19:12,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:19:12,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:19:12,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:19:12,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:19:12,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:12,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (1/1) ... [2020-08-18 15:19:13,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:19:13,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:19:13,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:19:13,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:19:13,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (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 [2020-08-18 15:19:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:19:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:19:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 15:19:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 15:19:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 15:19:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 15:19:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 15:19:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 15:19:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 15:19:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 15:19:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 15:19:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 15:19:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 15:19:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:19:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 15:19:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 15:19:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-08-18 15:19:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-08-18 15:19:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-08-18 15:19:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-08-18 15:19:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-08-18 15:19:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-08-18 15:19:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 15:19:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-08-18 15:19:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-08-18 15:19:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 15:19:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 15:19:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 15:19:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 15:19:13,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 15:19:13,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 15:19:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 15:19:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 15:19:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 15:19:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 15:19:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 15:19:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 15:19:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 15:19:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 15:19:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 15:19:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 15:19:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 15:19:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 15:19:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 15:19:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 15:19:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 15:19:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 15:19:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 15:19:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:19:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 15:19:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 15:19:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 15:19:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 15:19:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 15:19:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 15:19:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 15:19:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 15:19:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 15:19:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 15:19:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 15:19:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 15:19:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 15:19:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 15:19:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 15:19:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 15:19:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 15:19:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 15:19:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 15:19:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 15:19:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 15:19:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 15:19:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 15:19:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 15:19:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 15:19:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:19:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 15:19:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 15:19:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 15:19:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 15:19:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 15:19:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 15:19:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 15:19:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 15:19:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 15:19:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 15:19:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 15:19:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 15:19:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-08-18 15:19:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 15:19:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-08-18 15:19:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-08-18 15:19:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 15:19:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 15:19:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 15:19:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 15:19:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:19:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 15:19:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:19:14,504 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:19:14,507 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 15:19:14,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:19:14 BoogieIcfgContainer [2020-08-18 15:19:14,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:19:14,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:19:14,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:19:14,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:19:14,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:19:12" (1/3) ... [2020-08-18 15:19:14,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a2ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:19:14, skipping insertion in model container [2020-08-18 15:19:14,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:19:12" (2/3) ... [2020-08-18 15:19:14,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a2ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:19:14, skipping insertion in model container [2020-08-18 15:19:14,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:19:14" (3/3) ... [2020-08-18 15:19:14,528 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-08-18 15:19:14,538 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:19:14,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:19:14,557 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:19:14,580 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:19:14,580 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:19:14,580 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:19:14,580 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:19:14,581 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:19:14,581 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:19:14,581 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:19:14,581 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:19:14,606 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-08-18 15:19:14,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-08-18 15:19:14,620 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:19:14,621 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:19:14,621 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:19:14,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:19:14,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1384301403, now seen corresponding path program 1 times [2020-08-18 15:19:14,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:19:14,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011053535] [2020-08-18 15:19:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:19:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,498 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 15:19:15,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:19:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 15:19:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:19:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 15:19:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:19:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 15:19:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 15:19:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 15:19:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:19:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 15:19:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 15:19:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 15:19:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 15:19:15,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011053535] [2020-08-18 15:19:15,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:19:15,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 15:19:15,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561166138] [2020-08-18 15:19:15,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 15:19:15,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:19:15,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 15:19:15,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:19:15,696 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 5 states. [2020-08-18 15:19:17,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:19:17,998 INFO L93 Difference]: Finished difference Result 448 states and 591 transitions. [2020-08-18 15:19:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 15:19:18,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-08-18 15:19:18,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:19:18,017 INFO L225 Difference]: With dead ends: 448 [2020-08-18 15:19:18,017 INFO L226 Difference]: Without dead ends: 254 [2020-08-18 15:19:18,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:19:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-18 15:19:18,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 205. [2020-08-18 15:19:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-08-18 15:19:18,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 252 transitions. [2020-08-18 15:19:18,141 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 252 transitions. Word has length 84 [2020-08-18 15:19:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:19:18,142 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 252 transitions. [2020-08-18 15:19:18,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 15:19:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 252 transitions. [2020-08-18 15:19:18,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-08-18 15:19:18,147 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:19:18,147 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:19:18,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:19:18,148 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:19:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:19:18,148 INFO L82 PathProgramCache]: Analyzing trace with hash 435784209, now seen corresponding path program 1 times [2020-08-18 15:19:18,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:19:18,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345762434] [2020-08-18 15:19:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:19:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,555 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 15:19:18,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:19:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 15:19:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:19:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 15:19:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:19:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 15:19:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 15:19:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 15:19:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:19:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 15:19:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:19:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 15:19:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 15:19:18,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345762434] [2020-08-18 15:19:18,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:19:18,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 15:19:18,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124714488] [2020-08-18 15:19:18,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:19:18,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:19:18,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:19:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:19:18,693 INFO L87 Difference]: Start difference. First operand 205 states and 252 transitions. Second operand 6 states. [2020-08-18 15:19:19,431 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 15:19:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:19:21,238 INFO L93 Difference]: Finished difference Result 372 states and 469 transitions. [2020-08-18 15:19:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 15:19:21,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2020-08-18 15:19:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:19:21,244 INFO L225 Difference]: With dead ends: 372 [2020-08-18 15:19:21,244 INFO L226 Difference]: Without dead ends: 238 [2020-08-18 15:19:21,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:19:21,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-08-18 15:19:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 196. [2020-08-18 15:19:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-08-18 15:19:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 240 transitions. [2020-08-18 15:19:21,301 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 240 transitions. Word has length 85 [2020-08-18 15:19:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:19:21,302 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 240 transitions. [2020-08-18 15:19:21,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:19:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 240 transitions. [2020-08-18 15:19:21,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-08-18 15:19:21,305 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:19:21,305 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:19:21,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 15:19:21,306 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:19:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:19:21,306 INFO L82 PathProgramCache]: Analyzing trace with hash 681264365, now seen corresponding path program 1 times [2020-08-18 15:19:21,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:19:21,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917971397] [2020-08-18 15:19:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:19:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,736 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 15:19:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:19:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 15:19:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:19:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 15:19:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:19:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 15:19:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 15:19:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 15:19:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:19:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 15:19:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 15:19:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 15:19:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 15:19:21,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917971397] [2020-08-18 15:19:21,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:19:21,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 15:19:21,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198906763] [2020-08-18 15:19:21,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 15:19:21,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:19:21,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 15:19:21,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:19:21,936 INFO L87 Difference]: Start difference. First operand 196 states and 240 transitions. Second operand 12 states. [2020-08-18 15:19:22,487 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 15:19:23,193 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-08-18 15:19:24,018 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 213 [2020-08-18 15:19:25,088 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 15:19:25,490 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-08-18 15:19:29,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:19:29,594 INFO L93 Difference]: Finished difference Result 643 states and 818 transitions. [2020-08-18 15:19:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-18 15:19:29,595 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-08-18 15:19:29,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:19:29,602 INFO L225 Difference]: With dead ends: 643 [2020-08-18 15:19:29,602 INFO L226 Difference]: Without dead ends: 488 [2020-08-18 15:19:29,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-08-18 15:19:29,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-08-18 15:19:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 397. [2020-08-18 15:19:29,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-08-18 15:19:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 497 transitions. [2020-08-18 15:19:29,716 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 497 transitions. Word has length 90 [2020-08-18 15:19:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:19:29,716 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 497 transitions. [2020-08-18 15:19:29,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 15:19:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 497 transitions. [2020-08-18 15:19:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-08-18 15:19:29,719 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:19:29,719 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:19:29,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 15:19:29,720 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:19:29,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:19:29,720 INFO L82 PathProgramCache]: Analyzing trace with hash -326319286, now seen corresponding path program 1 times [2020-08-18 15:19:29,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:19:29,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46656348] [2020-08-18 15:19:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:19:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,041 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 15:19:30,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:19:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 15:19:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:19:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 15:19:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:19:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 15:19:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 15:19:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 15:19:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:19:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-18 15:19:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 15:19:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 15:19:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 15:19:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:30,208 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 15:19:30,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46656348] [2020-08-18 15:19:30,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:19:30,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 15:19:30,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115062917] [2020-08-18 15:19:30,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 15:19:30,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:19:30,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 15:19:30,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-18 15:19:30,213 INFO L87 Difference]: Start difference. First operand 397 states and 497 transitions. Second operand 10 states. [2020-08-18 15:19:30,800 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 15:19:33,008 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-18 15:19:33,440 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-18 15:19:33,780 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-18 15:19:34,095 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 15:19:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:19:35,939 INFO L93 Difference]: Finished difference Result 1234 states and 1653 transitions. [2020-08-18 15:19:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 15:19:35,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-08-18 15:19:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:19:35,949 INFO L225 Difference]: With dead ends: 1234 [2020-08-18 15:19:35,950 INFO L226 Difference]: Without dead ends: 878 [2020-08-18 15:19:35,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-08-18 15:19:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-08-18 15:19:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 778. [2020-08-18 15:19:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-08-18 15:19:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 987 transitions. [2020-08-18 15:19:36,155 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 987 transitions. Word has length 96 [2020-08-18 15:19:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:19:36,156 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 987 transitions. [2020-08-18 15:19:36,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 15:19:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 987 transitions. [2020-08-18 15:19:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-18 15:19:36,160 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:19:36,160 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:19:36,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 15:19:36,160 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:19:36,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:19:36,161 INFO L82 PathProgramCache]: Analyzing trace with hash 635729360, now seen corresponding path program 1 times [2020-08-18 15:19:36,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:19:36,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151544679] [2020-08-18 15:19:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:19:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,501 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 15:19:36,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:19:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 15:19:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:19:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:19:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 15:19:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:19:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 15:19:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 15:19:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 15:19:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:19:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-18 15:19:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 15:19:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 15:19:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 15:19:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 15:19:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:19:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 15:19:36,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151544679] [2020-08-18 15:19:36,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:19:36,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 15:19:36,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848076160] [2020-08-18 15:19:36,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:19:36,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:19:36,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:19:36,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:19:36,661 INFO L87 Difference]: Start difference. First operand 778 states and 987 transitions. Second operand 8 states. [2020-08-18 15:19:37,222 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 15:19:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:19:40,952 INFO L93 Difference]: Finished difference Result 1840 states and 2490 transitions. [2020-08-18 15:19:40,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 15:19:40,952 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-08-18 15:19:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:19:40,960 INFO L225 Difference]: With dead ends: 1840 [2020-08-18 15:19:40,960 INFO L226 Difference]: Without dead ends: 1103 [2020-08-18 15:19:40,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-08-18 15:19:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-18 15:19:41,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1024. [2020-08-18 15:19:41,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-08-18 15:19:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1298 transitions. [2020-08-18 15:19:41,186 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1298 transitions. Word has length 100 [2020-08-18 15:19:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:19:41,186 INFO L479 AbstractCegarLoop]: Abstraction has 1024 states and 1298 transitions. [2020-08-18 15:19:41,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:19:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1298 transitions. [2020-08-18 15:19:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-18 15:19:41,189 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:19:41,189 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:19:41,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 15:19:41,190 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:19:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:19:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash -950611836, now seen corresponding path program 1 times [2020-08-18 15:19:41,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:19:41,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808955106] [2020-08-18 15:19:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:19:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 15:19:41,252 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 15:19:41,252 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 15:19:41,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 15:19:41,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:19:41 BoogieIcfgContainer [2020-08-18 15:19:41,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:19:41,285 INFO L168 Benchmark]: Toolchain (without parser) took 29098.68 ms. Allocated memory was 140.0 MB in the beginning and 627.0 MB in the end (delta: 487.1 MB). Free memory was 101.7 MB in the beginning and 244.1 MB in the end (delta: -142.4 MB). Peak memory consumption was 344.6 MB. Max. memory is 7.1 GB. [2020-08-18 15:19:41,285 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 15:19:41,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.86 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 168.6 MB in the end (delta: -67.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-08-18 15:19:41,287 INFO L168 Benchmark]: Boogie Preprocessor took 143.27 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 163.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-18 15:19:41,288 INFO L168 Benchmark]: RCFGBuilder took 1502.13 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 181.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-08-18 15:19:41,289 INFO L168 Benchmark]: TraceAbstraction took 26763.64 ms. Allocated memory was 236.5 MB in the beginning and 627.0 MB in the end (delta: 390.6 MB). Free memory was 181.1 MB in the beginning and 244.1 MB in the end (delta: -63.0 MB). Peak memory consumption was 327.6 MB. Max. memory is 7.1 GB. [2020-08-18 15:19:41,292 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.86 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 168.6 MB in the end (delta: -67.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.27 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 163.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1502.13 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 181.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26763.64 ms. Allocated memory was 236.5 MB in the beginning and 627.0 MB in the end (delta: 390.6 MB). Free memory was 181.1 MB in the beginning and 244.1 MB in the end (delta: -63.0 MB). Peak memory consumption was 327.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 301 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.6s, OverallIterations: 6, TraceHistogramMax: 6, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 845 SDtfs, 3115 SDslu, 268 SDs, 0 SdLazy, 4707 SolverSat, 2600 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1024occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 361 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 167384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 225/225 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...