/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:23:04,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:23:04,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:23:04,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:23:04,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:23:04,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:23:04,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:23:04,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:23:04,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:23:04,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:23:04,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:23:04,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:23:04,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:23:04,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:23:05,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:23:05,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:23:05,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:23:05,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:23:05,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:23:05,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:23:05,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:23:05,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:23:05,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:23:05,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:23:05,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:23:05,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:23:05,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:23:05,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:23:05,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:23:05,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:23:05,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:23:05,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:23:05,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:23:05,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:23:05,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:23:05,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:23:05,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:23:05,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:23:05,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:23:05,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:23:05,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:23:05,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:23:05,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:23:05,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:23:05,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:23:05,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:23:05,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:23:05,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:23:05,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:23:05,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:23:05,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:23:05,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:23:05,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:23:05,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:23:05,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:23:05,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:23:05,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:23:05,072 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:23:05,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:23:05,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:23:05,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:23:05,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:23:05,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:23:05,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:23:05,074 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:23:05,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:23:05,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:23:05,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:23:05,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:23:05,401 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:23:05,402 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-08-22 21:23:05,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1945935b/5a971b76d0834c41a1cfb7d440d49a26/FLAG4a9b52e6a [2020-08-22 21:23:05,968 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:23:05,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-08-22 21:23:05,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1945935b/5a971b76d0834c41a1cfb7d440d49a26/FLAG4a9b52e6a [2020-08-22 21:23:06,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1945935b/5a971b76d0834c41a1cfb7d440d49a26 [2020-08-22 21:23:06,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:23:06,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:23:06,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:06,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:23:06,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:23:06,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:06,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecdb3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06, skipping insertion in model container [2020-08-22 21:23:06,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:06,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:23:06,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:23:06,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:06,757 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:23:06,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:06,981 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:23:06,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06 WrapperNode [2020-08-22 21:23:06,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:06,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:23:06,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:23:06,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:23:06,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:06,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:07,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:07,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:07,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:07,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:07,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (1/1) ... [2020-08-22 21:23:07,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:23:07,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:23:07,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:23:07,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:23:07,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (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 [2020-08-22 21:23:07,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:23:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:23:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:23:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:23:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:23:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:23:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:23:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:23:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:23:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 21:23:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:23:07,191 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 21:23:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:23:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:23:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:23:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:23:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:23:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:23:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:23:07,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 21:23:07,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:23:07,195 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:23:07,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:23:07,195 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:23:07,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:23:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:23:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:23:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:23:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:23:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:23:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:23:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:23:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:23:07,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 21:23:07,200 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 21:23:07,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:23:07,202 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:23:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:23:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:23:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:23:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:23:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:23:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:23:07,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:07,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:23:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:23:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:23:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:23:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:23:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:07,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:23:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:23:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:23:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:23:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:23:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:23:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:23:08,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:23:08,386 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:23:08,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:08 BoogieIcfgContainer [2020-08-22 21:23:08,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:23:08,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:23:08,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:23:08,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:23:08,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:23:06" (1/3) ... [2020-08-22 21:23:08,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c13d291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:08, skipping insertion in model container [2020-08-22 21:23:08,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:06" (2/3) ... [2020-08-22 21:23:08,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c13d291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:08, skipping insertion in model container [2020-08-22 21:23:08,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:08" (3/3) ... [2020-08-22 21:23:08,401 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-08-22 21:23:08,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:23:08,420 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:23:08,432 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:23:08,454 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:23:08,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:23:08,454 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:23:08,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:23:08,455 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:23:08,455 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:23:08,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:23:08,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:23:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-08-22 21:23:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:23:08,497 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:08,498 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] [2020-08-22 21:23:08,498 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:08,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:08,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times [2020-08-22 21:23:08,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:08,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508884494] [2020-08-22 21:23:08,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,245 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:09,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:23:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:09,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508884494] [2020-08-22 21:23:09,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:09,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:23:09,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396332079] [2020-08-22 21:23:09,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:23:09,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:09,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:23:09,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:23:09,455 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-08-22 21:23:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:10,807 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-08-22 21:23:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:23:10,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:23:10,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:10,828 INFO L225 Difference]: With dead ends: 458 [2020-08-22 21:23:10,828 INFO L226 Difference]: Without dead ends: 287 [2020-08-22 21:23:10,833 INFO L675 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 [2020-08-22 21:23:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-08-22 21:23:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-08-22 21:23:10,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 21:23:10,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-08-22 21:23:10,965 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-08-22 21:23:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:10,966 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-08-22 21:23:10,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:23:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-08-22 21:23:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:23:10,971 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:10,972 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] [2020-08-22 21:23:10,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:23:10,972 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:10,973 INFO L82 PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times [2020-08-22 21:23:10,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:10,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694483273] [2020-08-22 21:23:10,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,358 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:11,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:23:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:23:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:23:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:11,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694483273] [2020-08-22 21:23:11,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:11,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:23:11,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008263758] [2020-08-22 21:23:11,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:23:11,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:11,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:23:11,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:23:11,433 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-08-22 21:23:12,116 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:23:12,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:12,939 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-08-22 21:23:12,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:23:12,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:23:12,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:12,945 INFO L225 Difference]: With dead ends: 365 [2020-08-22 21:23:12,945 INFO L226 Difference]: Without dead ends: 270 [2020-08-22 21:23:12,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:23:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-08-22 21:23:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-08-22 21:23:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-22 21:23:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-08-22 21:23:13,017 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-08-22 21:23:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:13,017 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-08-22 21:23:13,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:23:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-08-22 21:23:13,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 21:23:13,020 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:13,021 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] [2020-08-22 21:23:13,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:23:13,021 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:13,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:13,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2018801783, now seen corresponding path program 1 times [2020-08-22 21:23:13,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:13,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326781008] [2020-08-22 21:23:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,334 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 21:23:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:23:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 21:23:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 21:23:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:13,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326781008] [2020-08-22 21:23:13,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:13,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:23:13,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380778846] [2020-08-22 21:23:13,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:23:13,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:13,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:23:13,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:23:13,507 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states. [2020-08-22 21:23:14,158 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:14,618 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:23:15,048 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 21:23:15,307 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:15,541 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:15,781 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:16,752 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:23:18,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:18,889 INFO L93 Difference]: Finished difference Result 647 states and 752 transitions. [2020-08-22 21:23:18,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:23:18,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 21:23:18,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:18,898 INFO L225 Difference]: With dead ends: 647 [2020-08-22 21:23:18,899 INFO L226 Difference]: Without dead ends: 522 [2020-08-22 21:23:18,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 21:23:18,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-08-22 21:23:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 431. [2020-08-22 21:23:19,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-08-22 21:23:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 480 transitions. [2020-08-22 21:23:19,088 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 480 transitions. Word has length 167 [2020-08-22 21:23:19,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:19,088 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 480 transitions. [2020-08-22 21:23:19,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:23:19,089 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 480 transitions. [2020-08-22 21:23:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 21:23:19,092 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:19,092 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] [2020-08-22 21:23:19,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:23:19,092 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:19,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:19,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1851726168, now seen corresponding path program 1 times [2020-08-22 21:23:19,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:19,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082097168] [2020-08-22 21:23:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,427 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:19,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 21:23:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 21:23:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 21:23:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 21:23:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:19,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082097168] [2020-08-22 21:23:19,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:19,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:23:19,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152271197] [2020-08-22 21:23:19,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:23:19,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:19,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:23:19,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:23:19,644 INFO L87 Difference]: Start difference. First operand 431 states and 480 transitions. Second operand 9 states. [2020-08-22 21:23:20,105 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:21,695 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:21,968 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:22,257 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:22,561 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:22,813 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:23,045 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:23,300 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:24,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:24,065 INFO L93 Difference]: Finished difference Result 1151 states and 1381 transitions. [2020-08-22 21:23:24,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 21:23:24,066 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 21:23:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:24,074 INFO L225 Difference]: With dead ends: 1151 [2020-08-22 21:23:24,074 INFO L226 Difference]: Without dead ends: 830 [2020-08-22 21:23:24,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:23:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-08-22 21:23:24,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 731. [2020-08-22 21:23:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-08-22 21:23:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 837 transitions. [2020-08-22 21:23:24,344 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 837 transitions. Word has length 172 [2020-08-22 21:23:24,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:24,345 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 837 transitions. [2020-08-22 21:23:24,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:23:24,345 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 837 transitions. [2020-08-22 21:23:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 21:23:24,350 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:24,350 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] [2020-08-22 21:23:24,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:23:24,351 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:24,351 INFO L82 PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times [2020-08-22 21:23:24,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:24,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754067730] [2020-08-22 21:23:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:24,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:24,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:24,722 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:23:24,722 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:23:24,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:23:24,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:23:24 BoogieIcfgContainer [2020-08-22 21:23:24,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:23:24,928 INFO L168 Benchmark]: Toolchain (without parser) took 18613.22 ms. Allocated memory was 141.0 MB in the beginning and 590.3 MB in the end (delta: 449.3 MB). Free memory was 104.5 MB in the beginning and 494.1 MB in the end (delta: -389.6 MB). Peak memory consumption was 418.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:24,930 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 123.6 MB in the beginning and 123.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 21:23:24,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.20 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 104.1 MB in the beginning and 173.9 MB in the end (delta: -69.8 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:24,938 INFO L168 Benchmark]: Boogie Preprocessor took 123.22 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 170.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:24,938 INFO L168 Benchmark]: RCFGBuilder took 1287.40 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 170.0 MB in the beginning and 172.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:24,939 INFO L168 Benchmark]: TraceAbstraction took 16531.96 ms. Allocated memory was 234.4 MB in the beginning and 590.3 MB in the end (delta: 356.0 MB). Free memory was 172.0 MB in the beginning and 494.1 MB in the end (delta: -322.1 MB). Peak memory consumption was 393.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:24,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 123.6 MB in the beginning and 123.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.20 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 104.1 MB in the beginning and 173.9 MB in the end (delta: -69.8 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.22 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 170.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1287.40 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 170.0 MB in the beginning and 172.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16531.96 ms. Allocated memory was 234.4 MB in the beginning and 590.3 MB in the end (delta: 356.0 MB). Free memory was 172.0 MB in the beginning and 494.1 MB in the end (delta: -322.1 MB). Peak memory consumption was 393.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=141, cleanupTimeShifts=173, head={176:164}, methaneLevelCritical=143, pumpRunning=0, systemActive=136, waterLevel=141] [L90] int systemActive = 1; VAL [\old(cleanupTimeShifts)=173, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=141, cleanupTimeShifts=173, head={176:164}, methaneLevelCritical=143, pumpRunning=0, systemActive=1, waterLevel=141] [L356] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=173, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=141, cleanupTimeShifts=173, head={176:164}, methaneLevelCritical=143, pumpRunning=0, systemActive=1, waterLevel=1] [L357] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=141, cleanupTimeShifts=173, head={176:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=173, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=141, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=173, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L519] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L72] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L525] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L525] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L527] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L529] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L530] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L512] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L287] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L288] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L289] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L290] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L291] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L294] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L296] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L298] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L304] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L306] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L308] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L308] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L314] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L316] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L324] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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, tmp___2=0, waterLevel=2] [L326] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L332] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L334] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L336] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L270] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L336] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L343] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L97] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L104] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L112] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L551] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L552] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L553] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L557] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L395] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L398] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L399] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L557] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L557] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L559] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L563] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L427] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L430] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L431] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L563] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L563] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L565] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L567] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L199] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L200] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L567] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L567] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L569] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L573] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L545] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 952 SDtfs, 1387 SDslu, 1400 SDs, 0 SdLazy, 2905 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 267 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 250786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...