/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:05:40,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:05:40,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:05:40,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:05:40,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:05:40,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:05:40,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:05:40,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:05:40,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:05:40,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:05:40,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:05:40,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:05:40,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:05:40,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:05:40,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:05:40,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:05:40,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:05:40,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:05:40,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:05:40,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:05:40,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:05:40,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:05:40,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:05:40,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:05:40,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:05:40,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:05:40,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:05:40,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:05:40,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:05:40,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:05:40,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:05:40,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:05:40,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:05:40,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:05:40,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:05:40,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:05:40,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:05:40,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:05:40,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:05:40,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:05:40,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:05:40,250 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 18:05:40,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:05:40,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:05:40,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:05:40,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:05:40,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:05:40,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:05:40,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:05:40,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:05:40,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:05:40,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:05:40,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:05:40,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:05:40,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:05:40,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:05:40,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:05:40,269 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:05:40,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:05:40,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:05:40,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:05:40,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:05:40,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:05:40,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:05:40,270 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:05:40,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:05:40,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:05:40,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:05:40,567 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:05:40,567 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:05:40,568 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-08-22 18:05:40,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88238e5d/075cbb068f6b46e6a2a4c0bf5d166db9/FLAGfff5c3b94 [2020-08-22 18:05:41,137 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:05:41,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-08-22 18:05:41,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88238e5d/075cbb068f6b46e6a2a4c0bf5d166db9/FLAGfff5c3b94 [2020-08-22 18:05:41,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88238e5d/075cbb068f6b46e6a2a4c0bf5d166db9 [2020-08-22 18:05:41,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:05:41,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:05:41,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:41,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:05:41,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:05:41,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:41" (1/1) ... [2020-08-22 18:05:41,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:41, skipping insertion in model container [2020-08-22 18:05:41,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:41" (1/1) ... [2020-08-22 18:05:41,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:05:41,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:05:41,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:42,007 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:05:42,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:42,120 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:05:42,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42 WrapperNode [2020-08-22 18:05:42,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:42,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:05:42,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:05:42,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:05:42,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (1/1) ... [2020-08-22 18:05:42,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:05:42,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:05:42,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:05:42,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:05:42,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (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 18:05:42,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:05:42,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:05:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:42,315 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:05:42,315 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:05:42,315 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:05:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:05:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:05:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:05:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:05:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:05:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:05:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:05:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:05:42,318 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:05:42,318 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:05:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:05:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:05:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:05:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:05:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:05:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:05:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:05:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:05:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:05:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:05:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:05:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:05:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:05:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:42,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:05:42,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:05:42,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:05:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:05:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:05:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:05:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:05:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:05:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:05:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:05:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:05:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:05:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:05:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:05:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:05:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:05:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:05:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:05:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:05:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:05:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:05:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:05:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:05:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:05:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:05:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:05:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:05:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:05:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:05:42,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:05:42,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:05:43,410 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:05:43,410 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:05:43,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:43 BoogieIcfgContainer [2020-08-22 18:05:43,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:05:43,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:05:43,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:05:43,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:05:43,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:05:41" (1/3) ... [2020-08-22 18:05:43,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3645a323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:43, skipping insertion in model container [2020-08-22 18:05:43,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:42" (2/3) ... [2020-08-22 18:05:43,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3645a323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:43, skipping insertion in model container [2020-08-22 18:05:43,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:43" (3/3) ... [2020-08-22 18:05:43,425 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-08-22 18:05:43,436 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:05:43,445 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:05:43,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:05:43,484 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:05:43,485 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:05:43,485 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:05:43,485 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:05:43,485 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:05:43,486 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:05:43,486 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:05:43,486 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:05:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-08-22 18:05:43,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:05:43,528 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:43,530 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 18:05:43,530 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:43,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-08-22 18:05:43,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:43,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982594856] [2020-08-22 18:05:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:43,626 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,239 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:05:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:05:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:05:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,427 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 18:05:44,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982594856] [2020-08-22 18:05:44,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:44,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:05:44,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995942651] [2020-08-22 18:05:44,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:05:44,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:44,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:05:44,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:44,454 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-08-22 18:05:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:45,916 INFO L93 Difference]: Finished difference Result 532 states and 635 transitions. [2020-08-22 18:05:45,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:05:45,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:05:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:45,936 INFO L225 Difference]: With dead ends: 532 [2020-08-22 18:05:45,936 INFO L226 Difference]: Without dead ends: 326 [2020-08-22 18:05:45,942 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 18:05:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-08-22 18:05:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 280. [2020-08-22 18:05:46,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-22 18:05:46,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 307 transitions. [2020-08-22 18:05:46,090 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 307 transitions. Word has length 153 [2020-08-22 18:05:46,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:46,092 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 307 transitions. [2020-08-22 18:05:46,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:05:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 307 transitions. [2020-08-22 18:05:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:05:46,096 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:46,097 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 18:05:46,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:05:46,097 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:46,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1744708548, now seen corresponding path program 1 times [2020-08-22 18:05:46,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:46,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891357551] [2020-08-22 18:05:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:46,102 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,437 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:46,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:05:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:05:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:05:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,508 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 18:05:46,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891357551] [2020-08-22 18:05:46,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:46,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:05:46,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935778008] [2020-08-22 18:05:46,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:05:46,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:46,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:05:46,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:05:46,511 INFO L87 Difference]: Start difference. First operand 280 states and 307 transitions. Second operand 4 states. [2020-08-22 18:05:47,098 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:48,139 INFO L93 Difference]: Finished difference Result 439 states and 498 transitions. [2020-08-22 18:05:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:05:48,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:05:48,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:48,145 INFO L225 Difference]: With dead ends: 439 [2020-08-22 18:05:48,145 INFO L226 Difference]: Without dead ends: 309 [2020-08-22 18:05:48,147 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 18:05:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-22 18:05:48,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 270. [2020-08-22 18:05:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-08-22 18:05:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 294 transitions. [2020-08-22 18:05:48,228 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 294 transitions. Word has length 154 [2020-08-22 18:05:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:48,228 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 294 transitions. [2020-08-22 18:05:48,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:05:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 294 transitions. [2020-08-22 18:05:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:05:48,231 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:48,231 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 18:05:48,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:05:48,232 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:48,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:48,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1330649895, now seen corresponding path program 1 times [2020-08-22 18:05:48,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:48,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254927252] [2020-08-22 18:05:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:48,235 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,545 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:05:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:05:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:05:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:05:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:48,706 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 18:05:48,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254927252] [2020-08-22 18:05:48,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:48,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:05:48,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016283801] [2020-08-22 18:05:48,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:05:48,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:48,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:05:48,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:05:48,710 INFO L87 Difference]: Start difference. First operand 270 states and 294 transitions. Second operand 10 states. [2020-08-22 18:05:49,202 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:49,506 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:05:49,759 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:05:49,985 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:50,221 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:50,438 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:51,282 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:53,860 INFO L93 Difference]: Finished difference Result 760 states and 888 transitions. [2020-08-22 18:05:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:05:53,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:05:53,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:53,866 INFO L225 Difference]: With dead ends: 760 [2020-08-22 18:05:53,866 INFO L226 Difference]: Without dead ends: 600 [2020-08-22 18:05:53,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:05:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-08-22 18:05:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 501. [2020-08-22 18:05:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-08-22 18:05:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 564 transitions. [2020-08-22 18:05:54,040 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 564 transitions. Word has length 167 [2020-08-22 18:05:54,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:54,040 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 564 transitions. [2020-08-22 18:05:54,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:05:54,041 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 564 transitions. [2020-08-22 18:05:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:05:54,044 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:54,044 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 18:05:54,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:05:54,045 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:54,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:54,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1800368934, now seen corresponding path program 1 times [2020-08-22 18:05:54,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:54,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482999621] [2020-08-22 18:05:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:54,048 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,404 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:54,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:05:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:05:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:05:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:05:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:54,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482999621] [2020-08-22 18:05:54,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:54,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:05:54,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065332403] [2020-08-22 18:05:54,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:05:54,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:54,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:05:54,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:05:54,658 INFO L87 Difference]: Start difference. First operand 501 states and 564 transitions. Second operand 9 states. [2020-08-22 18:05:55,295 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:57,239 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:57,506 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:57,776 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:58,056 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:58,333 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:58,563 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:58,786 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:59,880 INFO L93 Difference]: Finished difference Result 1373 states and 1659 transitions. [2020-08-22 18:05:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:05:59,882 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:05:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:59,894 INFO L225 Difference]: With dead ends: 1373 [2020-08-22 18:05:59,894 INFO L226 Difference]: Without dead ends: 982 [2020-08-22 18:05:59,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:05:59,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-08-22 18:06:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 875. [2020-08-22 18:06:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2020-08-22 18:06:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1009 transitions. [2020-08-22 18:06:00,213 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1009 transitions. Word has length 172 [2020-08-22 18:06:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:00,213 INFO L479 AbstractCegarLoop]: Abstraction has 875 states and 1009 transitions. [2020-08-22 18:06:00,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:06:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1009 transitions. [2020-08-22 18:06:00,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:06:00,218 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:00,218 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 18:06:00,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:06:00,219 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:00,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-08-22 18:06:00,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:00,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937057649] [2020-08-22 18:06:00,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:00,222 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:00,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:00,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:00,508 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:06:00,508 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:06:00,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:06:00,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:06:00 BoogieIcfgContainer [2020-08-22 18:06:00,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:06:00,533 INFO L168 Benchmark]: Toolchain (without parser) took 19045.88 ms. Allocated memory was 140.0 MB in the beginning and 606.1 MB in the end (delta: 466.1 MB). Free memory was 101.6 MB in the beginning and 289.7 MB in the end (delta: -188.2 MB). Peak memory consumption was 277.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:00,534 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:06:00,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.06 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 170.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:00,535 INFO L168 Benchmark]: Boogie Preprocessor took 108.12 ms. Allocated memory is still 203.4 MB. Free memory was 170.8 MB in the beginning and 166.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:00,536 INFO L168 Benchmark]: RCFGBuilder took 1186.91 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 173.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:00,537 INFO L168 Benchmark]: TraceAbstraction took 17113.15 ms. Allocated memory was 237.0 MB in the beginning and 606.1 MB in the end (delta: 369.1 MB). Free memory was 172.1 MB in the beginning and 289.7 MB in the end (delta: -117.6 MB). Peak memory consumption was 251.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:00,541 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.06 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 170.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.12 ms. Allocated memory is still 203.4 MB. Free memory was 170.8 MB in the beginning and 166.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1186.91 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 173.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17113.15 ms. Allocated memory was 237.0 MB in the beginning and 606.1 MB in the end (delta: 369.1 MB). Free memory was 172.1 MB in the beginning and 289.7 MB in the end (delta: -117.6 MB). Peak memory consumption was 251.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1076 SDtfs, 1490 SDslu, 1554 SDs, 0 SdLazy, 3518 SolverSat, 539 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=875occurred 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, 291 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...