/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:24:37,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:24:37,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:24:37,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:24:37,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:24:37,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:24:37,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:24:37,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:24:38,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:24:38,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:24:38,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:24:38,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:24:38,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:24:38,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:24:38,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:24:38,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:24:38,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:24:38,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:24:38,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:24:38,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:24:38,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:24:38,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:24:38,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:24:38,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:24:38,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:24:38,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:24:38,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:24:38,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:24:38,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:24:38,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:24:38,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:24:38,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:24:38,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:24:38,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:24:38,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:24:38,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:24:38,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:24:38,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:24:38,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:24:38,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:24:38,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:24:38,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:24:38,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:24:38,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:24:38,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:24:38,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:24:38,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:24:38,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:24:38,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:24:38,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:24:38,046 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:24:38,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:24:38,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:24:38,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:24:38,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:24:38,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:24:38,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:24:38,050 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-07-17 16:24:38,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:24:38,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:24:38,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:24:38,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:24:38,367 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:24:38,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-07-17 16:24:38,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c77f8c0/d797264659ca42b39b277f593a17df2f/FLAGe150a2e2c [2020-07-17 16:24:39,055 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:24:39,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-07-17 16:24:39,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c77f8c0/d797264659ca42b39b277f593a17df2f/FLAGe150a2e2c [2020-07-17 16:24:39,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c77f8c0/d797264659ca42b39b277f593a17df2f [2020-07-17 16:24:39,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:24:39,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:24:39,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:24:39,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:24:39,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:24:39,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:24:39" (1/1) ... [2020-07-17 16:24:39,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb3b04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:39, skipping insertion in model container [2020-07-17 16:24:39,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:24:39" (1/1) ... [2020-07-17 16:24:39,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:24:39,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:24:39,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:24:39,896 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:24:40,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:24:40,072 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:24:40,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40 WrapperNode [2020-07-17 16:24:40,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:24:40,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:24:40,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:24:40,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:24:40,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... [2020-07-17 16:24:40,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:24:40,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:24:40,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:24:40,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:24:40,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-17 16:24:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:24:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:24:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:24:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:24:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:24:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:24:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:24:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:24:40,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:24:40,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:24:40,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:24:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:24:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:24:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:24:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:24:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:24:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:24:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:24:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:24:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:24:40,260 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:24:40,260 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:24:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:24:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:24:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:24:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:24:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:24:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:24:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:24:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:24:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:24:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:24:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:24:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:24:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:24:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:24:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:24:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:24:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:24:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:24:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:24:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:24:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:24:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:24:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:24:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:24:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:24:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:24:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:24:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:24:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:24:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:24:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:24:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:24:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:24:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:24:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:24:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:24:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:24:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:24:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:24:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:24:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:24:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:24:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:24:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:24:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:24:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:24:41,428 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:24:41,429 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:24:41,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:24:41 BoogieIcfgContainer [2020-07-17 16:24:41,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:24:41,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:24:41,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:24:41,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:24:41,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:24:39" (1/3) ... [2020-07-17 16:24:41,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124dc2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:24:41, skipping insertion in model container [2020-07-17 16:24:41,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:40" (2/3) ... [2020-07-17 16:24:41,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124dc2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:24:41, skipping insertion in model container [2020-07-17 16:24:41,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:24:41" (3/3) ... [2020-07-17 16:24:41,443 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-07-17 16:24:41,454 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:24:41,466 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:24:41,481 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:24:41,506 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:24:41,507 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:24:41,507 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:24:41,507 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:24:41,507 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:24:41,508 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:24:41,508 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:24:41,508 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:24:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2020-07-17 16:24:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-17 16:24:41,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:41,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:41,553 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:41,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1299916906, now seen corresponding path program 1 times [2020-07-17 16:24:41,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:41,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562931644] [2020-07-17 16:24:41,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,226 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:42,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562931644] [2020-07-17 16:24:42,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:42,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:24:42,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240949823] [2020-07-17 16:24:42,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:24:42,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:42,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:24:42,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:24:42,439 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 3 states. [2020-07-17 16:24:43,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:43,860 INFO L93 Difference]: Finished difference Result 481 states and 577 transitions. [2020-07-17 16:24:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:24:43,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-17 16:24:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:43,887 INFO L225 Difference]: With dead ends: 481 [2020-07-17 16:24:43,887 INFO L226 Difference]: Without dead ends: 299 [2020-07-17 16:24:43,897 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 [2020-07-17 16:24:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-07-17 16:24:44,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 256. [2020-07-17 16:24:44,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-07-17 16:24:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 280 transitions. [2020-07-17 16:24:44,100 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 280 transitions. Word has length 142 [2020-07-17 16:24:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:44,103 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 280 transitions. [2020-07-17 16:24:44,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:24:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 280 transitions. [2020-07-17 16:24:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-17 16:24:44,119 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:44,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:44,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:24:44,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:44,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1066330747, now seen corresponding path program 1 times [2020-07-17 16:24:44,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:44,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273670919] [2020-07-17 16:24:44,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,481 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:44,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273670919] [2020-07-17 16:24:44,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:44,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:24:44,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576348129] [2020-07-17 16:24:44,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:24:44,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:44,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:24:44,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:24:44,635 INFO L87 Difference]: Start difference. First operand 256 states and 280 transitions. Second operand 4 states. [2020-07-17 16:24:45,245 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:46,205 INFO L93 Difference]: Finished difference Result 392 states and 444 transitions. [2020-07-17 16:24:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:24:46,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-17 16:24:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:46,210 INFO L225 Difference]: With dead ends: 392 [2020-07-17 16:24:46,210 INFO L226 Difference]: Without dead ends: 282 [2020-07-17 16:24:46,212 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 [2020-07-17 16:24:46,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-07-17 16:24:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 246. [2020-07-17 16:24:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-07-17 16:24:46,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 267 transitions. [2020-07-17 16:24:46,296 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 267 transitions. Word has length 143 [2020-07-17 16:24:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:46,297 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 267 transitions. [2020-07-17 16:24:46,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:24:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 267 transitions. [2020-07-17 16:24:46,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-17 16:24:46,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:46,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:46,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:24:46,301 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:46,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:46,302 INFO L82 PathProgramCache]: Analyzing trace with hash 449926668, now seen corresponding path program 1 times [2020-07-17 16:24:46,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:46,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704066731] [2020-07-17 16:24:46,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,666 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:46,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704066731] [2020-07-17 16:24:46,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:46,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:24:46,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463173754] [2020-07-17 16:24:46,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:24:46,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:46,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:24:46,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:24:46,818 INFO L87 Difference]: Start difference. First operand 246 states and 267 transitions. Second operand 9 states. [2020-07-17 16:24:47,257 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:47,607 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:24:47,869 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:24:48,123 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:48,386 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:48,656 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:49,572 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:51,638 INFO L93 Difference]: Finished difference Result 649 states and 752 transitions. [2020-07-17 16:24:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:24:51,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-17 16:24:51,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:51,646 INFO L225 Difference]: With dead ends: 649 [2020-07-17 16:24:51,647 INFO L226 Difference]: Without dead ends: 513 [2020-07-17 16:24:51,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-17 16:24:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-07-17 16:24:51,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 446. [2020-07-17 16:24:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-07-17 16:24:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 502 transitions. [2020-07-17 16:24:51,784 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 502 transitions. Word has length 152 [2020-07-17 16:24:51,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:51,784 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 502 transitions. [2020-07-17 16:24:51,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:24:51,785 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 502 transitions. [2020-07-17 16:24:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 16:24:51,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:51,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:51,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:24:51,789 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:51,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1074396656, now seen corresponding path program 1 times [2020-07-17 16:24:51,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:51,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307511076] [2020-07-17 16:24:51,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,051 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:52,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307511076] [2020-07-17 16:24:52,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:52,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:24:52,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604727102] [2020-07-17 16:24:52,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:24:52,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:52,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:24:52,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:24:52,195 INFO L87 Difference]: Start difference. First operand 446 states and 502 transitions. Second operand 9 states. [2020-07-17 16:24:52,745 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:53,915 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:54,198 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:54,626 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:54,898 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:55,304 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:55,579 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:55,824 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:56,294 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:57,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:57,314 INFO L93 Difference]: Finished difference Result 1233 states and 1488 transitions. [2020-07-17 16:24:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:24:57,314 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-07-17 16:24:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:57,322 INFO L225 Difference]: With dead ends: 1233 [2020-07-17 16:24:57,322 INFO L226 Difference]: Without dead ends: 897 [2020-07-17 16:24:57,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:24:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-07-17 16:24:57,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 743. [2020-07-17 16:24:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-07-17 16:24:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 850 transitions. [2020-07-17 16:24:57,644 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 850 transitions. Word has length 161 [2020-07-17 16:24:57,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:57,645 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 850 transitions. [2020-07-17 16:24:57,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:24:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 850 transitions. [2020-07-17 16:24:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-17 16:24:57,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:57,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:57,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:24:57,650 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:57,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:57,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1527739392, now seen corresponding path program 1 times [2020-07-17 16:24:57,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:57,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298702983] [2020-07-17 16:24:57,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,948 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:58,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298702983] [2020-07-17 16:24:58,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:58,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:24:58,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649811208] [2020-07-17 16:24:58,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:24:58,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:58,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:24:58,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:24:58,165 INFO L87 Difference]: Start difference. First operand 743 states and 850 transitions. Second operand 10 states. [2020-07-17 16:24:58,823 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:00,273 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:00,535 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:00,831 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:01,098 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:01,334 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:01,946 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:02,184 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:02,589 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:03,832 INFO L93 Difference]: Finished difference Result 1940 states and 2409 transitions. [2020-07-17 16:25:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 16:25:03,834 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-07-17 16:25:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:03,843 INFO L225 Difference]: With dead ends: 1940 [2020-07-17 16:25:03,844 INFO L226 Difference]: Without dead ends: 1307 [2020-07-17 16:25:03,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:25:03,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-07-17 16:25:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1045. [2020-07-17 16:25:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-07-17 16:25:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1213 transitions. [2020-07-17 16:25:04,225 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1213 transitions. Word has length 166 [2020-07-17 16:25:04,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:04,226 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1213 transitions. [2020-07-17 16:25:04,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:04,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1213 transitions. [2020-07-17 16:25:04,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:04,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:04,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:04,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:25:04,231 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:04,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1570026786, now seen corresponding path program 1 times [2020-07-17 16:25:04,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:04,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857838743] [2020-07-17 16:25:04,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,511 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:04,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857838743] [2020-07-17 16:25:04,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:04,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:25:04,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116686310] [2020-07-17 16:25:04,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:25:04,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:04,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:25:04,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:25:04,718 INFO L87 Difference]: Start difference. First operand 1045 states and 1213 transitions. Second operand 10 states. [2020-07-17 16:25:06,135 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:06,437 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:06,688 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:25:06,942 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:07,217 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:07,464 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:08,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:08,711 INFO L93 Difference]: Finished difference Result 2384 states and 2938 transitions. [2020-07-17 16:25:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:25:08,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-07-17 16:25:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:08,726 INFO L225 Difference]: With dead ends: 2384 [2020-07-17 16:25:08,727 INFO L226 Difference]: Without dead ends: 1449 [2020-07-17 16:25:08,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:25:08,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2020-07-17 16:25:09,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1083. [2020-07-17 16:25:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1083 states. [2020-07-17 16:25:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1253 transitions. [2020-07-17 16:25:09,131 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1253 transitions. Word has length 195 [2020-07-17 16:25:09,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:09,132 INFO L479 AbstractCegarLoop]: Abstraction has 1083 states and 1253 transitions. [2020-07-17 16:25:09,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1253 transitions. [2020-07-17 16:25:09,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:09,136 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:09,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:09,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:25:09,137 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:09,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1751070334, now seen corresponding path program 1 times [2020-07-17 16:25:09,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:09,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833259869] [2020-07-17 16:25:09,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,400 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:09,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:09,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833259869] [2020-07-17 16:25:09,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:09,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-17 16:25:09,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787806991] [2020-07-17 16:25:09,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 16:25:09,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:09,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 16:25:09,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-07-17 16:25:09,593 INFO L87 Difference]: Start difference. First operand 1083 states and 1253 transitions. Second operand 13 states. [2020-07-17 16:25:10,158 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:10,405 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:10,661 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:10,943 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:11,228 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:12,136 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:12,384 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:12,660 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:12,933 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:13,169 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:14,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:14,782 INFO L93 Difference]: Finished difference Result 2466 states and 3077 transitions. [2020-07-17 16:25:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 16:25:14,783 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2020-07-17 16:25:14,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:14,792 INFO L225 Difference]: With dead ends: 2466 [2020-07-17 16:25:14,792 INFO L226 Difference]: Without dead ends: 1493 [2020-07-17 16:25:14,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-07-17 16:25:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2020-07-17 16:25:15,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1107. [2020-07-17 16:25:15,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1107 states. [2020-07-17 16:25:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1277 transitions. [2020-07-17 16:25:15,161 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1277 transitions. Word has length 195 [2020-07-17 16:25:15,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:15,161 INFO L479 AbstractCegarLoop]: Abstraction has 1107 states and 1277 transitions. [2020-07-17 16:25:15,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 16:25:15,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1277 transitions. [2020-07-17 16:25:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:15,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:15,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:15,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 16:25:15,167 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:15,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:15,167 INFO L82 PathProgramCache]: Analyzing trace with hash 110776353, now seen corresponding path program 1 times [2020-07-17 16:25:15,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:15,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003960836] [2020-07-17 16:25:15,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,454 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:15,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003960836] [2020-07-17 16:25:15,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:15,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 16:25:15,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516009908] [2020-07-17 16:25:15,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 16:25:15,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:15,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 16:25:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 16:25:15,677 INFO L87 Difference]: Start difference. First operand 1107 states and 1277 transitions. Second operand 7 states. [2020-07-17 16:25:16,246 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:16,889 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:20,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:20,000 INFO L93 Difference]: Finished difference Result 3764 states and 4711 transitions. [2020-07-17 16:25:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:25:20,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-07-17 16:25:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:20,019 INFO L225 Difference]: With dead ends: 3764 [2020-07-17 16:25:20,019 INFO L226 Difference]: Without dead ends: 2767 [2020-07-17 16:25:20,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-17 16:25:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2020-07-17 16:25:20,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2263. [2020-07-17 16:25:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2263 states. [2020-07-17 16:25:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 2633 transitions. [2020-07-17 16:25:21,004 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 2633 transitions. Word has length 195 [2020-07-17 16:25:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:21,005 INFO L479 AbstractCegarLoop]: Abstraction has 2263 states and 2633 transitions. [2020-07-17 16:25:21,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 16:25:21,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 2633 transitions. [2020-07-17 16:25:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-17 16:25:21,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:21,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:21,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 16:25:21,011 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:21,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1026625680, now seen corresponding path program 1 times [2020-07-17 16:25:21,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:21,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975606994] [2020-07-17 16:25:21,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:25:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:25:21,320 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:25:21,320 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:25:21,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 16:25:21,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:25:21 BoogieIcfgContainer [2020-07-17 16:25:21,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:25:21,617 INFO L168 Benchmark]: Toolchain (without parser) took 42266.88 ms. Allocated memory was 137.4 MB in the beginning and 1.0 GB in the end (delta: 908.6 MB). Free memory was 101.5 MB in the beginning and 382.4 MB in the end (delta: -280.9 MB). Peak memory consumption was 627.6 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:21,618 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 16:25:21,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.40 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 167.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:21,620 INFO L168 Benchmark]: Boogie Preprocessor took 84.83 ms. Allocated memory is still 201.3 MB. Free memory was 167.6 MB in the beginning and 163.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:21,621 INFO L168 Benchmark]: RCFGBuilder took 1277.34 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 163.5 MB in the beginning and 172.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:21,621 INFO L168 Benchmark]: TraceAbstraction took 40179.00 ms. Allocated memory was 232.3 MB in the beginning and 1.0 GB in the end (delta: 813.7 MB). Free memory was 172.6 MB in the beginning and 382.4 MB in the end (delta: -209.7 MB). Peak memory consumption was 603.9 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:21,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.40 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 167.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.83 ms. Allocated memory is still 201.3 MB. Free memory was 167.6 MB in the beginning and 163.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.34 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 163.5 MB in the beginning and 172.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40179.00 ms. Allocated memory was 232.3 MB in the beginning and 1.0 GB in the end (delta: 813.7 MB). Free memory was 172.6 MB in the beginning and 382.4 MB in the end (delta: -209.7 MB). Peak memory consumption was 603.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=170, head={0:0}, methaneLevelCritical=144, pumpRunning=135, systemActive=134, waterLevel=137] [L450] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=170, head={0:0}, methaneLevelCritical=144, pumpRunning=135, systemActive=134, waterLevel=1] [L451] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=170, head={0:0}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L617] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=170, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L618] int systemActive = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=170, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L848] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L922] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L843] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L928] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L928] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L930] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L932] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L933] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L550] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L552] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L567] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L569] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L577] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L579] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L483] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L587] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L602] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L624] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L633] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L679] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L697] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L656] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L658] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L776] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L777] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L778] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L533] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L537] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L538] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L782] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L784] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L787] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L789] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L790] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L658] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L660] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L662] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L662] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L697] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L633] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L639] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L415] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L489] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L492] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L493] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L415] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L415] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L417] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L419] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L731] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L734] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L735] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L419] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L419] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L421] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L423] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L439] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 32.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1951 SDtfs, 3515 SDslu, 3702 SDs, 0 SdLazy, 7897 SolverSat, 1128 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 189 SyntacticMatches, 3 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2263occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 1818 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1549 NumberOfCodeBlocks, 1549 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1341 ConstructedInterpolants, 0 QuantifiedInterpolants, 579174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...