/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 true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 01:00:56,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:00:56,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:00:56,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:00:56,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:00:56,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:00:56,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:00:56,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:00:56,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:00:56,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:00:56,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:00:57,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:00:57,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:00:57,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:00:57,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:00:57,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:00:57,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:00:57,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:00:57,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:00:57,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:00:57,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:00:57,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:00:57,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:00:57,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:00:57,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:00:57,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:00:57,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:00:57,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:00:57,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:00:57,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:00:57,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:00:57,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:00:57,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:00:57,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:00:57,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:00:57,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:00:57,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:00:57,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:00:57,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:00:57,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:00:57,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:00:57,044 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 [2020-08-19 01:00:57,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:00:57,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:00:57,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:00:57,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:00:57,089 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:00:57,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:00:57,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:00:57,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:00:57,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:00:57,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:00:57,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:00:57,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:00:57,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:00:57,092 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:00:57,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:00:57,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:00:57,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:00:57,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:00:57,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:00:57,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:00:57,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:00:57,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:00:57,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:00:57,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:00:57,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:00:57,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:00:57,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:00:57,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:00:57,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:00:57,095 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 -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; [2020-08-19 01:00:57,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:00:57,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:00:57,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:00:57,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:00:57,404 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:00:57,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-08-19 01:00:57,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a285ee9a/7da2b6078e8c492383951409ac06e1af/FLAGc2770b336 [2020-08-19 01:00:57,996 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:00:57,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-08-19 01:00:58,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a285ee9a/7da2b6078e8c492383951409ac06e1af/FLAGc2770b336 [2020-08-19 01:00:58,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a285ee9a/7da2b6078e8c492383951409ac06e1af [2020-08-19 01:00:58,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:00:58,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:00:58,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:00:58,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:00:58,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:00:58,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:58,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b134fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58, skipping insertion in model container [2020-08-19 01:00:58,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:58,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:00:58,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:00:58,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:00:58,861 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:00:58,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:00:58,989 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:00:58,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58 WrapperNode [2020-08-19 01:00:58,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:00:58,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:00:58,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:00:58,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:00:59,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (1/1) ... [2020-08-19 01:00:59,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:00:59,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:00:59,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:00:59,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:00:59,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (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 [2020-08-19 01:00:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:00:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:00:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 01:00:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 01:00:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-19 01:00:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 01:00:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 01:00:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 01:00:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 01:00:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 01:00:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 01:00:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 01:00:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 01:00:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 01:00:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 01:00:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 01:00:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 01:00:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 01:00:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 01:00:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 01:00:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-19 01:00:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 01:00:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 01:00:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 01:00:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 01:00:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:00:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:00:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:00:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 01:00:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 01:00:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:00:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 01:00:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 01:00:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-19 01:00:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 01:00:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 01:00:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:00:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 01:00:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 01:00:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 01:00:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 01:00:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 01:00:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 01:00:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 01:00:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 01:00:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:00:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 01:00:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:01:00,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:01:00,164 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 01:01:00,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:01:00 BoogieIcfgContainer [2020-08-19 01:01:00,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:01:00,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:01:00,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:01:00,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:01:00,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:00:58" (1/3) ... [2020-08-19 01:01:00,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5055ace6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:01:00, skipping insertion in model container [2020-08-19 01:01:00,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:00:58" (2/3) ... [2020-08-19 01:01:00,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5055ace6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:01:00, skipping insertion in model container [2020-08-19 01:01:00,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:01:00" (3/3) ... [2020-08-19 01:01:00,185 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-08-19 01:01:00,196 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:01:00,205 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:01:00,220 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:01:00,247 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:01:00,247 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:01:00,247 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:01:00,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:01:00,247 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:01:00,248 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:01:00,248 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:01:00,248 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:01:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-08-19 01:01:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-19 01:01:00,279 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:00,280 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] [2020-08-19 01:01:00,281 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:00,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:00,287 INFO L82 PathProgramCache]: Analyzing trace with hash -219528545, now seen corresponding path program 1 times [2020-08-19 01:01:00,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:00,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449422116] [2020-08-19 01:01:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:00,932 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:00,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 01:01:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 01:01:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:01:01,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449422116] [2020-08-19 01:01:01,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:01:01,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 01:01:01,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946403646] [2020-08-19 01:01:01,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 01:01:01,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:01,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 01:01:01,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 01:01:01,115 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2020-08-19 01:01:02,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:02,235 INFO L93 Difference]: Finished difference Result 281 states and 365 transitions. [2020-08-19 01:01:02,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 01:01:02,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-19 01:01:02,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:02,257 INFO L225 Difference]: With dead ends: 281 [2020-08-19 01:01:02,257 INFO L226 Difference]: Without dead ends: 152 [2020-08-19 01:01:02,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 01:01:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-08-19 01:01:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-08-19 01:01:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-08-19 01:01:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-08-19 01:01:02,441 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 46 [2020-08-19 01:01:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:02,443 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-08-19 01:01:02,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 01:01:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-08-19 01:01:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 01:01:02,449 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:02,450 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] [2020-08-19 01:01:02,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:01:02,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:02,451 INFO L82 PathProgramCache]: Analyzing trace with hash 207659306, now seen corresponding path program 1 times [2020-08-19 01:01:02,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:02,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532556979] [2020-08-19 01:01:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,864 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:02,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 01:01:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:01:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:01:02,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532556979] [2020-08-19 01:01:02,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:01:02,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:01:02,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576478972] [2020-08-19 01:01:02,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:01:02,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:02,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:01:02,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:01:02,910 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 4 states. [2020-08-19 01:01:03,317 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:04,135 INFO L93 Difference]: Finished difference Result 214 states and 256 transitions. [2020-08-19 01:01:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 01:01:04,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-19 01:01:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:04,140 INFO L225 Difference]: With dead ends: 214 [2020-08-19 01:01:04,140 INFO L226 Difference]: Without dead ends: 136 [2020-08-19 01:01:04,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:01:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-19 01:01:04,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-08-19 01:01:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-19 01:01:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-08-19 01:01:04,175 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 47 [2020-08-19 01:01:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:04,176 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-08-19 01:01:04,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:01:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-08-19 01:01:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-19 01:01:04,178 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:04,178 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] [2020-08-19 01:01:04,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:01:04,179 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:04,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1269439858, now seen corresponding path program 1 times [2020-08-19 01:01:04,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:04,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081270704] [2020-08-19 01:01:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,479 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:04,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 01:01:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 01:01:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:01:04,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081270704] [2020-08-19 01:01:04,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:01:04,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 01:01:04,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557398513] [2020-08-19 01:01:04,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:01:04,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:01:04,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:01:04,627 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 8 states. [2020-08-19 01:01:04,964 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:05,292 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:05,556 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:05,817 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:06,904 INFO L93 Difference]: Finished difference Result 223 states and 270 transitions. [2020-08-19 01:01:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 01:01:06,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-19 01:01:06,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:06,907 INFO L225 Difference]: With dead ends: 223 [2020-08-19 01:01:06,907 INFO L226 Difference]: Without dead ends: 136 [2020-08-19 01:01:06,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 01:01:06,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-19 01:01:06,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-08-19 01:01:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-19 01:01:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2020-08-19 01:01:06,944 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 51 [2020-08-19 01:01:06,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:06,945 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2020-08-19 01:01:06,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:01:06,945 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2020-08-19 01:01:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 01:01:06,947 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:06,947 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] [2020-08-19 01:01:06,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:01:06,948 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:06,948 INFO L82 PathProgramCache]: Analyzing trace with hash 6417079, now seen corresponding path program 1 times [2020-08-19 01:01:06,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:06,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305677161] [2020-08-19 01:01:06,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,217 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 01:01:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 01:01:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 01:01:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:01:07,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305677161] [2020-08-19 01:01:07,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:01:07,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 01:01:07,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742168247] [2020-08-19 01:01:07,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 01:01:07,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:07,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 01:01:07,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 01:01:07,309 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 6 states. [2020-08-19 01:01:07,608 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:08,760 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:09,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:09,183 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2020-08-19 01:01:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 01:01:09,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-08-19 01:01:09,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:09,188 INFO L225 Difference]: With dead ends: 306 [2020-08-19 01:01:09,189 INFO L226 Difference]: Without dead ends: 219 [2020-08-19 01:01:09,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-19 01:01:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-08-19 01:01:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 178. [2020-08-19 01:01:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-08-19 01:01:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 203 transitions. [2020-08-19 01:01:09,229 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 203 transitions. Word has length 59 [2020-08-19 01:01:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:09,229 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 203 transitions. [2020-08-19 01:01:09,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 01:01:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 203 transitions. [2020-08-19 01:01:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-19 01:01:09,232 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:09,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:01:09,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:01:09,233 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:09,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1711068188, now seen corresponding path program 1 times [2020-08-19 01:01:09,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:09,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578580852] [2020-08-19 01:01:09,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,541 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:09,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 01:01:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:01:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 01:01:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 01:01:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:01:09,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578580852] [2020-08-19 01:01:09,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:01:09,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 01:01:09,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600410185] [2020-08-19 01:01:09,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 01:01:09,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:09,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 01:01:09,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-19 01:01:09,654 INFO L87 Difference]: Start difference. First operand 178 states and 203 transitions. Second operand 10 states. [2020-08-19 01:01:10,104 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:10,345 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:10,588 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:11,147 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:11,382 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:11,627 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:12,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:12,444 INFO L93 Difference]: Finished difference Result 374 states and 456 transitions. [2020-08-19 01:01:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 01:01:12,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2020-08-19 01:01:12,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:12,448 INFO L225 Difference]: With dead ends: 374 [2020-08-19 01:01:12,448 INFO L226 Difference]: Without dead ends: 220 [2020-08-19 01:01:12,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-08-19 01:01:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-08-19 01:01:12,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 182. [2020-08-19 01:01:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-08-19 01:01:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 207 transitions. [2020-08-19 01:01:12,488 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 207 transitions. Word has length 73 [2020-08-19 01:01:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:12,489 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 207 transitions. [2020-08-19 01:01:12,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 01:01:12,489 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 207 transitions. [2020-08-19 01:01:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-19 01:01:12,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:12,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:01:12,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 01:01:12,491 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:12,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:12,492 INFO L82 PathProgramCache]: Analyzing trace with hash -212159846, now seen corresponding path program 1 times [2020-08-19 01:01:12,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:12,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884856419] [2020-08-19 01:01:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,817 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:12,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 01:01:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:01:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 01:01:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 01:01:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:12,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:01:12,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884856419] [2020-08-19 01:01:12,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:01:12,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 01:01:12,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254134741] [2020-08-19 01:01:12,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 01:01:12,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:12,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 01:01:12,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-19 01:01:12,942 INFO L87 Difference]: Start difference. First operand 182 states and 207 transitions. Second operand 12 states. [2020-08-19 01:01:13,351 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:13,681 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:13,915 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:14,151 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:14,631 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:15,422 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:15,713 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 01:01:15,962 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 01:01:16,196 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:16,500 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 01:01:16,790 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 01:01:17,847 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:18,128 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:18,793 INFO L93 Difference]: Finished difference Result 644 states and 828 transitions. [2020-08-19 01:01:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 01:01:18,794 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-08-19 01:01:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:18,801 INFO L225 Difference]: With dead ends: 644 [2020-08-19 01:01:18,801 INFO L226 Difference]: Without dead ends: 486 [2020-08-19 01:01:18,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-19 01:01:18,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-08-19 01:01:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 428. [2020-08-19 01:01:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-08-19 01:01:18,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 499 transitions. [2020-08-19 01:01:18,907 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 499 transitions. Word has length 73 [2020-08-19 01:01:18,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:18,909 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 499 transitions. [2020-08-19 01:01:18,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 01:01:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 499 transitions. [2020-08-19 01:01:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-19 01:01:18,920 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:18,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:01:18,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 01:01:18,922 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:18,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:18,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1943233311, now seen corresponding path program 1 times [2020-08-19 01:01:18,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:18,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310662426] [2020-08-19 01:01:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,213 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:19,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 01:01:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 01:01:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:01:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 01:01:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 01:01:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-19 01:01:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 01:01:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 01:01:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-19 01:01:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-19 01:01:19,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310662426] [2020-08-19 01:01:19,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:01:19,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 01:01:19,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857820935] [2020-08-19 01:01:19,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 01:01:19,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:19,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 01:01:19,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-08-19 01:01:19,475 INFO L87 Difference]: Start difference. First operand 428 states and 499 transitions. Second operand 13 states. [2020-08-19 01:01:19,874 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:20,559 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:21,071 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 01:01:21,337 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 01:01:21,611 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:21,871 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 01:01:22,136 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:22,384 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 01:01:22,670 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:22,920 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:24,342 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:24,616 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 01:01:24,889 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:25,379 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:01:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:25,761 INFO L93 Difference]: Finished difference Result 767 states and 973 transitions. [2020-08-19 01:01:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-19 01:01:25,761 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2020-08-19 01:01:25,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:25,766 INFO L225 Difference]: With dead ends: 767 [2020-08-19 01:01:25,766 INFO L226 Difference]: Without dead ends: 363 [2020-08-19 01:01:25,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2020-08-19 01:01:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-08-19 01:01:25,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 313. [2020-08-19 01:01:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-08-19 01:01:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 368 transitions. [2020-08-19 01:01:25,823 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 368 transitions. Word has length 132 [2020-08-19 01:01:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:25,823 INFO L479 AbstractCegarLoop]: Abstraction has 313 states and 368 transitions. [2020-08-19 01:01:25,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 01:01:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 368 transitions. [2020-08-19 01:01:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-19 01:01:25,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:25,826 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:01:25,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 01:01:25,826 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:25,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1980525114, now seen corresponding path program 1 times [2020-08-19 01:01:25,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:25,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968808817] [2020-08-19 01:01:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,126 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:01:26,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:01:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:01:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:01:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:01:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 01:01:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 01:01:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:01:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:01:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 01:01:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:01:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 01:01:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 01:01:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:01:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-19 01:01:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 01:01:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:01:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 01:01:26,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968808817] [2020-08-19 01:01:26,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:01:26,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-19 01:01:26,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576396024] [2020-08-19 01:01:26,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 01:01:26,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:01:26,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 01:01:26,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-19 01:01:26,314 INFO L87 Difference]: Start difference. First operand 313 states and 368 transitions. Second operand 12 states. [2020-08-19 01:01:26,709 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:27,294 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:28,015 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:28,470 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:28,804 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:29,059 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:01:29,354 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:29,616 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:01:30,546 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:01:31,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:01:31,253 INFO L93 Difference]: Finished difference Result 727 states and 931 transitions. [2020-08-19 01:01:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-19 01:01:31,253 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2020-08-19 01:01:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:01:31,258 INFO L225 Difference]: With dead ends: 727 [2020-08-19 01:01:31,258 INFO L226 Difference]: Without dead ends: 492 [2020-08-19 01:01:31,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2020-08-19 01:01:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-08-19 01:01:31,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 411. [2020-08-19 01:01:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-08-19 01:01:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 492 transitions. [2020-08-19 01:01:31,362 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 492 transitions. Word has length 128 [2020-08-19 01:01:31,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:01:31,363 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 492 transitions. [2020-08-19 01:01:31,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 01:01:31,363 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 492 transitions. [2020-08-19 01:01:31,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-19 01:01:31,367 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:01:31,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:01:31,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 01:01:31,367 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:01:31,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:01:31,368 INFO L82 PathProgramCache]: Analyzing trace with hash 2141115904, now seen corresponding path program 2 times [2020-08-19 01:01:31,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:01:31,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859614119] [2020-08-19 01:01:31,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:01:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 01:01:31,452 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 01:01:31,452 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 01:01:31,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 01:01:31,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:01:31 BoogieIcfgContainer [2020-08-19 01:01:31,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:01:31,508 INFO L168 Benchmark]: Toolchain (without parser) took 33158.10 ms. Allocated memory was 140.0 MB in the beginning and 634.9 MB in the end (delta: 494.9 MB). Free memory was 101.8 MB in the beginning and 509.3 MB in the end (delta: -407.4 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2020-08-19 01:01:31,510 INFO L168 Benchmark]: CDTParser took 0.20 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. [2020-08-19 01:01:31,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.95 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.6 MB in the beginning and 168.7 MB in the end (delta: -67.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-08-19 01:01:31,518 INFO L168 Benchmark]: Boogie Preprocessor took 83.57 ms. Allocated memory is still 202.9 MB. Free memory was 168.7 MB in the beginning and 164.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-19 01:01:31,518 INFO L168 Benchmark]: RCFGBuilder took 1101.85 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 164.1 MB in the beginning and 195.0 MB in the end (delta: -31.0 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-08-19 01:01:31,519 INFO L168 Benchmark]: TraceAbstraction took 31326.20 ms. Allocated memory was 237.0 MB in the beginning and 634.9 MB in the end (delta: 397.9 MB). Free memory was 195.0 MB in the beginning and 509.3 MB in the end (delta: -314.2 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-08-19 01:01:31,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 640.95 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.6 MB in the beginning and 168.7 MB in the end (delta: -67.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.57 ms. Allocated memory is still 202.9 MB. Free memory was 168.7 MB in the beginning and 164.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1101.85 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 164.1 MB in the beginning and 195.0 MB in the end (delta: -31.0 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31326.20 ms. Allocated memory was 237.0 MB in the beginning and 634.9 MB in the end (delta: 397.9 MB). Free memory was 195.0 MB in the beginning and 509.3 MB in the end (delta: -314.2 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L198] int retValue_acc ; [L201] retValue_acc = 1 [L202] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L585] int splverifierCounter ; [L586] int tmp ; [L587] int tmp___0 ; [L588] int tmp___1 ; [L589] int tmp___2 ; [L592] splverifierCounter = 0 [L594] COND TRUE 1 [L596] COND TRUE splverifierCounter < 4 [L602] tmp = __VERIFIER_nondet_int() [L604] COND TRUE \read(tmp) [L606] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L606] RET waterRise() [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) [L637] CALL timeShift() [L659] COND FALSE !(\read(pumpRunning)) [L666] COND TRUE \read(systemActive) [L668] CALL processEnvironment() [L688] int tmp ; [L691] COND TRUE ! pumpRunning [L693] CALL, EXPR isHighWaterLevel() [L803] int retValue_acc ; [L804] int tmp ; [L805] int tmp___0 ; [L809] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L809] RET, EXPR isHighWaterSensorDry() [L809] tmp = isHighWaterSensorDry() [L811] COND FALSE !(\read(tmp)) [L814] tmp___0 = 1 [L816] retValue_acc = tmp___0 [L817] return (retValue_acc); [L693] RET, EXPR isHighWaterLevel() [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) [L697] CALL activatePump() [L722] int tmp ; [L726] CALL, EXPR isMethaneAlarm() [L747] int retValue_acc ; [L751] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L751] RET, EXPR isMethaneLevelCritical() [L751] retValue_acc = isMethaneLevelCritical() [L753] return (retValue_acc); [L726] RET, EXPR isMethaneAlarm() [L726] tmp = isMethaneAlarm() [L728] COND FALSE !(\read(tmp)) [L732] CALL activatePump__wrappee__highWaterSensor() [L716] pumpRunning = 1 [L732] RET activatePump__wrappee__highWaterSensor() [L697] RET activatePump() [L668] RET processEnvironment() [L674] CALL __utac_acc__Specification4_spec__1() [L144] int tmp ; [L145] int tmp___0 ; [L149] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L149] RET, EXPR getWaterLevel() [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) [L674] RET __utac_acc__Specification4_spec__1() [L637] RET timeShift() [L594] COND TRUE 1 [L596] COND TRUE splverifierCounter < 4 [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) [L637] CALL timeShift() [L659] COND TRUE \read(pumpRunning) [L661] CALL lowerWaterLevel() [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L661] RET lowerWaterLevel() [L666] COND TRUE \read(systemActive) [L668] CALL processEnvironment() [L688] int tmp ; [L691] COND FALSE !(! pumpRunning) [L706] FCALL processEnvironment__wrappee__base() [L668] RET processEnvironment() [L674] CALL __utac_acc__Specification4_spec__1() [L144] int tmp ; [L145] int tmp___0 ; [L149] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L149] RET, EXPR getWaterLevel() [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) [L674] RET __utac_acc__Specification4_spec__1() [L637] RET timeShift() [L594] COND TRUE 1 [L596] COND TRUE splverifierCounter < 4 [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) [L637] CALL timeShift() [L659] COND TRUE \read(pumpRunning) [L661] CALL lowerWaterLevel() [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L661] RET lowerWaterLevel() [L666] COND TRUE \read(systemActive) [L668] CALL processEnvironment() [L688] int tmp ; [L691] COND FALSE !(! pumpRunning) [L706] FCALL processEnvironment__wrappee__base() [L668] RET processEnvironment() [L674] CALL __utac_acc__Specification4_spec__1() [L144] int tmp ; [L145] int tmp___0 ; [L149] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L149] RET, EXPR getWaterLevel() [L149] tmp = getWaterLevel() [L151] COND TRUE tmp == 0 [L153] CALL, EXPR isPumpRunning() [L758] int retValue_acc ; [L761] retValue_acc = pumpRunning [L762] return (retValue_acc); [L153] RET, EXPR isPumpRunning() [L153] tmp___0 = isPumpRunning() [L155] COND TRUE \read(tmp___0) [L157] CALL __automaton_fail() [L211] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 222 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 26.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 903 SDtfs, 1922 SDslu, 1116 SDs, 0 SdLazy, 5424 SolverSat, 1222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 338 GetRequests, 215 SyntacticMatches, 5 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 350 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 772 NumberOfCodeBlocks, 772 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 601 ConstructedInterpolants, 0 QuantifiedInterpolants, 204026 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 44/52 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...