/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:58:41,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:58:41,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:58:41,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:58:41,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:58:41,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:58:41,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:58:41,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:58:41,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:58:41,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:58:41,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:58:41,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:58:41,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:58:41,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:58:41,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:58:41,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:58:41,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:58:41,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:58:41,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:58:41,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:58:41,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:58:41,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:58:41,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:58:41,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:58:41,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:58:41,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:58:41,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:58:41,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:58:41,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:58:41,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:58:41,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:58:41,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:58:41,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:58:41,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:58:41,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:58:41,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:58:41,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:58:41,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:58:41,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:58:41,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:58:41,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:58:41,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:58:41,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:58:41,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:58:41,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:58:41,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:58:41,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:58:41,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:58:41,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:58:41,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:58:41,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:58:41,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:58:41,431 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:58:41,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:58:41,431 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:58:41,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:58:41,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:58:41,433 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:58:41,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:58:41,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:58:41,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:58:41,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:58:41,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:58:41,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:58:41,434 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:58:41,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:58:41,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:58:41,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:58:41,944 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:58:41,945 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:58:41,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-23 23:58:42,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b334cc8ed/c9d972ffd8fe4bf7be1bf98fc9c2858d/FLAG2dd27b49a [2020-10-23 23:58:42,764 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:58:42,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-23 23:58:42,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b334cc8ed/c9d972ffd8fe4bf7be1bf98fc9c2858d/FLAG2dd27b49a [2020-10-23 23:58:43,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b334cc8ed/c9d972ffd8fe4bf7be1bf98fc9c2858d [2020-10-23 23:58:43,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:58:43,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:58:43,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:58:43,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:58:43,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:58:43,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9b0977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43, skipping insertion in model container [2020-10-23 23:58:43,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:58:43,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:58:43,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:58:43,497 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:58:43,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:58:43,641 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:58:43,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43 WrapperNode [2020-10-23 23:58:43,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:58:43,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:58:43,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:58:43,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:58:43,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (1/1) ... [2020-10-23 23:58:43,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:58:43,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:58:43,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:58:43,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:58:43,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (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 [2020-10-23 23:58:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:58:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:58:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:58:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:58:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:58:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:58:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:58:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:58:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:58:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:58:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:58:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:58:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:58:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:58:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:58:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:58:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:58:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:58:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:58:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:58:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:58:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:58:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:58:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:58:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 23:58:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:58:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 23:58:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:58:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:58:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:58:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:58:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:58:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:58:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:58:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:58:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:58:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:58:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:58:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:58:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:58:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:58:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:58:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:58:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:58:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:58:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:58:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:58:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:58:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:58:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:58:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:58:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:58:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:58:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:58:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:58:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:58:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:58:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:58:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:58:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:58:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:58:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:58:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:58:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:58:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:58:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:58:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 23:58:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:58:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:58:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:58:45,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:58:45,074 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:58:45,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:58:45 BoogieIcfgContainer [2020-10-23 23:58:45,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:58:45,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:58:45,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:58:45,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:58:45,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:58:43" (1/3) ... [2020-10-23 23:58:45,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c57743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:58:45, skipping insertion in model container [2020-10-23 23:58:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:58:43" (2/3) ... [2020-10-23 23:58:45,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c57743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:58:45, skipping insertion in model container [2020-10-23 23:58:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:58:45" (3/3) ... [2020-10-23 23:58:45,090 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2020-10-23 23:58:45,103 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:58:45,109 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:58:45,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:58:45,155 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:58:45,155 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:58:45,156 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:58:45,156 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:58:45,156 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:58:45,157 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:58:45,157 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:58:45,157 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:58:45,190 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-10-23 23:58:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:58:45,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:45,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:45,234 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:45,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:45,244 INFO L82 PathProgramCache]: Analyzing trace with hash 164481850, now seen corresponding path program 1 times [2020-10-23 23:58:45,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:45,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275746548] [2020-10-23 23:58:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,023 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:46,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:58:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:58:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:58:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:46,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275746548] [2020-10-23 23:58:46,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:46,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:58:46,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972335147] [2020-10-23 23:58:46,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:58:46,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:46,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:58:46,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:46,306 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-10-23 23:58:48,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:48,007 INFO L93 Difference]: Finished difference Result 487 states and 581 transitions. [2020-10-23 23:58:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:58:48,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:58:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:48,049 INFO L225 Difference]: With dead ends: 487 [2020-10-23 23:58:48,049 INFO L226 Difference]: Without dead ends: 302 [2020-10-23 23:58:48,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-23 23:58:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-10-23 23:58:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 23:58:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 284 transitions. [2020-10-23 23:58:48,261 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 284 transitions. Word has length 159 [2020-10-23 23:58:48,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:48,262 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 284 transitions. [2020-10-23 23:58:48,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:58:48,263 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 284 transitions. [2020-10-23 23:58:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:58:48,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:48,267 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] [2020-10-23 23:58:48,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:58:48,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:48,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:48,269 INFO L82 PathProgramCache]: Analyzing trace with hash -617236116, now seen corresponding path program 1 times [2020-10-23 23:58:48,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:48,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290906888] [2020-10-23 23:58:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:48,926 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:48,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:58:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:58:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:58:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:49,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:49,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290906888] [2020-10-23 23:58:49,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:49,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:58:49,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922251570] [2020-10-23 23:58:49,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:58:49,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:49,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:58:49,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:58:49,093 INFO L87 Difference]: Start difference. First operand 261 states and 284 transitions. Second operand 4 states. [2020-10-23 23:58:49,974 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:58:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:51,220 INFO L93 Difference]: Finished difference Result 401 states and 452 transitions. [2020-10-23 23:58:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:58:51,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:58:51,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:51,225 INFO L225 Difference]: With dead ends: 401 [2020-10-23 23:58:51,225 INFO L226 Difference]: Without dead ends: 285 [2020-10-23 23:58:51,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:58:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-23 23:58:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 251. [2020-10-23 23:58:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-23 23:58:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-10-23 23:58:51,341 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 160 [2020-10-23 23:58:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:51,342 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-10-23 23:58:51,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:58:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-10-23 23:58:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 23:58:51,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:51,345 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] [2020-10-23 23:58:51,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:58:51,345 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:51,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:51,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1464124706, now seen corresponding path program 1 times [2020-10-23 23:58:51,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:51,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301291916] [2020-10-23 23:58:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:51,822 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:51,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:51,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:51,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:51,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:51,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:51,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:58:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:52,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:58:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:52,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 23:58:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:52,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301291916] [2020-10-23 23:58:52,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:52,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:58:52,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482296082] [2020-10-23 23:58:52,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:58:52,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:52,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:58:52,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:58:52,081 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 9 states. [2020-10-23 23:58:52,817 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:53,295 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:58:53,697 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:58:54,079 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:54,508 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:54,881 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:56,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:56,696 INFO L93 Difference]: Finished difference Result 421 states and 477 transitions. [2020-10-23 23:58:56,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:58:56,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 23:58:56,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:56,703 INFO L225 Difference]: With dead ends: 421 [2020-10-23 23:58:56,704 INFO L226 Difference]: Without dead ends: 285 [2020-10-23 23:58:56,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:58:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-23 23:58:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 251. [2020-10-23 23:58:56,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-23 23:58:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 270 transitions. [2020-10-23 23:58:56,838 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 270 transitions. Word has length 169 [2020-10-23 23:58:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:56,839 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 270 transitions. [2020-10-23 23:58:56,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:58:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 270 transitions. [2020-10-23 23:58:56,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-23 23:58:56,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:56,843 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] [2020-10-23 23:58:56,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:58:56,843 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:58:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:56,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1973193443, now seen corresponding path program 1 times [2020-10-23 23:58:56,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:56,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118680260] [2020-10-23 23:58:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,330 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:57,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:58:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:58:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:58:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-23 23:58:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:57,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118680260] [2020-10-23 23:58:57,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:57,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:58:57,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557215501] [2020-10-23 23:58:57,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:58:57,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:57,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:58:57,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:58:57,486 INFO L87 Difference]: Start difference. First operand 251 states and 270 transitions. Second operand 9 states. [2020-10-23 23:58:58,192 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:00,864 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:01,300 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:01,708 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:02,137 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:02,548 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:03,184 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:03,646 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:04,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:04,121 INFO L93 Difference]: Finished difference Result 593 states and 701 transitions. [2020-10-23 23:59:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:59:04,121 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-10-23 23:59:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:04,127 INFO L225 Difference]: With dead ends: 593 [2020-10-23 23:59:04,127 INFO L226 Difference]: Without dead ends: 457 [2020-10-23 23:59:04,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:59:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-10-23 23:59:04,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 380. [2020-10-23 23:59:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-10-23 23:59:04,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 422 transitions. [2020-10-23 23:59:04,327 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 422 transitions. Word has length 182 [2020-10-23 23:59:04,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:04,328 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 422 transitions. [2020-10-23 23:59:04,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 422 transitions. [2020-10-23 23:59:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-23 23:59:04,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:04,332 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] [2020-10-23 23:59:04,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:59:04,332 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:04,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1466683393, now seen corresponding path program 1 times [2020-10-23 23:59:04,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:04,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455271611] [2020-10-23 23:59:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,722 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:04,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 23:59:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:59:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:59:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:59:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:59:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:59:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-23 23:59:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-23 23:59:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:04,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455271611] [2020-10-23 23:59:04,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:04,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:59:04,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739095916] [2020-10-23 23:59:04,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:59:04,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:04,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:59:04,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:59:04,921 INFO L87 Difference]: Start difference. First operand 380 states and 422 transitions. Second operand 6 states. [2020-10-23 23:59:05,594 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:06,424 INFO L93 Difference]: Finished difference Result 560 states and 642 transitions. [2020-10-23 23:59:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 23:59:06,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-10-23 23:59:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:06,427 INFO L225 Difference]: With dead ends: 560 [2020-10-23 23:59:06,427 INFO L226 Difference]: Without dead ends: 295 [2020-10-23 23:59:06,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:59:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-23 23:59:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 274. [2020-10-23 23:59:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-23 23:59:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 289 transitions. [2020-10-23 23:59:06,540 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 289 transitions. Word has length 192 [2020-10-23 23:59:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:06,540 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 289 transitions. [2020-10-23 23:59:06,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:59:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 289 transitions. [2020-10-23 23:59:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-23 23:59:06,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:06,544 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] [2020-10-23 23:59:06,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:59:06,544 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2132265585, now seen corresponding path program 1 times [2020-10-23 23:59:06,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:06,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531895042] [2020-10-23 23:59:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:06,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:06,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:06,901 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:59:06,901 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:59:06,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:59:07,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:59:07 BoogieIcfgContainer [2020-10-23 23:59:07,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:59:07,173 INFO L168 Benchmark]: Toolchain (without parser) took 24079.14 ms. Allocated memory was 151.0 MB in the beginning and 382.7 MB in the end (delta: 231.7 MB). Free memory was 125.7 MB in the beginning and 199.8 MB in the end (delta: -74.1 MB). Peak memory consumption was 159.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:07,174 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:59:07,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.43 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:07,175 INFO L168 Benchmark]: Boogie Preprocessor took 90.91 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 100.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:07,176 INFO L168 Benchmark]: RCFGBuilder took 1344.28 ms. Allocated memory is still 151.0 MB. Free memory was 100.0 MB in the beginning and 91.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:07,177 INFO L168 Benchmark]: TraceAbstraction took 22089.19 ms. Allocated memory was 151.0 MB in the beginning and 382.7 MB in the end (delta: 231.7 MB). Free memory was 90.7 MB in the beginning and 199.8 MB in the end (delta: -109.1 MB). Peak memory consumption was 122.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:07,181 INFO L339 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 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 542.43 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 90.91 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 100.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1344.28 ms. Allocated memory is still 151.0 MB. Free memory was 100.0 MB in the beginning and 91.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22089.19 ms. Allocated memory was 151.0 MB in the beginning and 382.7 MB in the end (delta: 231.7 MB). Free memory was 90.7 MB in the beginning and 199.8 MB in the end (delta: -109.1 MB). Peak memory consumption was 122.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=181, head={182:169}, methaneLevelCritical=146, pumpRunning=136, systemActive=135, waterLevel=1] [L86] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=181, head={182:169}, methaneLevelCritical=0, pumpRunning=136, systemActive=135, waterLevel=1] [L343] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=181, head={0:0}, methaneLevelCritical=0, pumpRunning=136, systemActive=135, waterLevel=1] [L587] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=136, systemActive=135, waterLevel=1] [L688] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=135, waterLevel=1] [L689] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L663] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L664] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L669] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L569] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L572] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L573] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L670] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L670] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L672] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L674] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L675] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L884] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L885] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L893] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L895] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L901] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L903] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L905] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L911] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L913] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L921] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L923] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L936] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L48] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L49] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L124] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L128] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L53] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L55] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L160] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L819] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L822] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L823] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L65] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L69] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product29.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 643 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1143 SDtfs, 1626 SDslu, 1384 SDs, 0 SdLazy, 2720 SolverSat, 479 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=380occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 207 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1049 NumberOfCodeBlocks, 1049 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 857 ConstructedInterpolants, 0 QuantifiedInterpolants, 378652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...