/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:25:42,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:25:42,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:25:42,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:25:42,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:25:42,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:25:42,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:25:42,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:25:42,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:25:42,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:25:42,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:25:42,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:25:42,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:25:42,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:25:42,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:25:42,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:25:42,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:25:42,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:25:42,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:25:42,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:25:42,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:25:42,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:25:42,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:25:42,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:25:42,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:25:42,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:25:42,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:25:42,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:25:42,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:25:42,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:25:42,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:25:42,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:25:42,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:25:42,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:25:42,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:25:42,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:25:42,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:25:42,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:25:42,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:25:42,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:25:42,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:25:42,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:25:42,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:25:42,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:25:42,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:25:42,217 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:25:42,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:25:42,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:25:42,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:25:42,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:25:42,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:25:42,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:25:42,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:25:42,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:25:42,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:25:42,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:25:42,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:25:42,221 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:25:42,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:25:42,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:25:42,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:25:42,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:25:42,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:25:42,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:25:42,224 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:25:42,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:25:42,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:25:42,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:25:42,642 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:25:42,643 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:25:42,644 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-04 15:25:42,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d10723f0/ecf1a0902c0b48f992e04ab6b745bb19/FLAG44054af3b [2020-09-04 15:25:43,331 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:25:43,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-04 15:25:43,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d10723f0/ecf1a0902c0b48f992e04ab6b745bb19/FLAG44054af3b [2020-09-04 15:25:43,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d10723f0/ecf1a0902c0b48f992e04ab6b745bb19 [2020-09-04 15:25:43,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:25:43,628 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:25:43,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:25:43,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:25:43,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:25:43,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:25:43" (1/1) ... [2020-09-04 15:25:43,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d6e00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:43, skipping insertion in model container [2020-09-04 15:25:43,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:25:43" (1/1) ... [2020-09-04 15:25:43,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:25:43,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:25:44,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:25:44,221 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:25:44,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:25:44,349 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:25:44,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44 WrapperNode [2020-09-04 15:25:44,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:25:44,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:25:44,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:25:44,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:25:44,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... [2020-09-04 15:25:44,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:25:44,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:25:44,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:25:44,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:25:44,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:25:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:25:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:25:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:25:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:25:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:25:44,527 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:25:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:25:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:25:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:25:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:25:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:25:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:25:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:25:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:25:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:25:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:25:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:25:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:25:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:25:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:25:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:25:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:25:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:25:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:25:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:25:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:25:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:25:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:25:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:25:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:25:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:25:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:25:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:25:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:25:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:25:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:25:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:25:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:25:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:25:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:25:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:25:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:25:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:25:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:25:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:25:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:25:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:25:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:25:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:25:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:25:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:25:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:25:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:25:44,538 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:25:44,539 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:25:44,539 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:25:44,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:25:44,539 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:25:44,539 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:25:44,539 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:25:44,540 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:25:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:25:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:25:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:25:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:25:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:25:44,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:25:44,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:25:45,707 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:25:45,707 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:25:45,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:25:45 BoogieIcfgContainer [2020-09-04 15:25:45,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:25:45,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:25:45,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:25:45,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:25:45,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:25:43" (1/3) ... [2020-09-04 15:25:45,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a440986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:25:45, skipping insertion in model container [2020-09-04 15:25:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:44" (2/3) ... [2020-09-04 15:25:45,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a440986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:25:45, skipping insertion in model container [2020-09-04 15:25:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:25:45" (3/3) ... [2020-09-04 15:25:45,725 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-09-04 15:25:45,738 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:25:45,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:25:45,773 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:25:45,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:25:45,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:25:45,808 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:25:45,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:25:45,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:25:45,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:25:45,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:25:45,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:25:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states. [2020-09-04 15:25:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:25:45,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:45,896 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] [2020-09-04 15:25:45,897 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:45,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times [2020-09-04 15:25:45,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:45,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618937062] [2020-09-04 15:25:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:46,019 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,791 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:25:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:25:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:25:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:46,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618937062] [2020-09-04 15:25:46,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:46,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:25:46,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281148723] [2020-09-04 15:25:46,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:25:46,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:46,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:25:46,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:25:46,993 INFO L87 Difference]: Start difference. First operand 346 states. Second operand 3 states. [2020-09-04 15:25:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:48,469 INFO L93 Difference]: Finished difference Result 561 states and 663 transitions. [2020-09-04 15:25:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:25:48,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:25:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:48,505 INFO L225 Difference]: With dead ends: 561 [2020-09-04 15:25:48,506 INFO L226 Difference]: Without dead ends: 340 [2020-09-04 15:25:48,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:25:48,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-04 15:25:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 295. [2020-09-04 15:25:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-04 15:25:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-09-04 15:25:48,693 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 153 [2020-09-04 15:25:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:48,694 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-09-04 15:25:48,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:25:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-09-04 15:25:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:25:48,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:48,698 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] [2020-09-04 15:25:48,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:25:48,699 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:48,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:48,700 INFO L82 PathProgramCache]: Analyzing trace with hash -987340637, now seen corresponding path program 1 times [2020-09-04 15:25:48,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:48,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140234568] [2020-09-04 15:25:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:48,704 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,106 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:25:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:25:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:25:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:49,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140234568] [2020-09-04 15:25:49,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:49,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:25:49,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292668914] [2020-09-04 15:25:49,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:25:49,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:49,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:25:49,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:25:49,230 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 4 states. [2020-09-04 15:25:49,926 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:51,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:51,143 INFO L93 Difference]: Finished difference Result 472 states and 530 transitions. [2020-09-04 15:25:51,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:25:51,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:25:51,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:51,148 INFO L225 Difference]: With dead ends: 472 [2020-09-04 15:25:51,149 INFO L226 Difference]: Without dead ends: 323 [2020-09-04 15:25:51,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:25:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-04 15:25:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 285. [2020-09-04 15:25:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-09-04 15:25:51,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 309 transitions. [2020-09-04 15:25:51,258 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 309 transitions. Word has length 154 [2020-09-04 15:25:51,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:51,259 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 309 transitions. [2020-09-04 15:25:51,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:25:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 309 transitions. [2020-09-04 15:25:51,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 15:25:51,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:51,262 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] [2020-09-04 15:25:51,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:25:51,262 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:51,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:51,263 INFO L82 PathProgramCache]: Analyzing trace with hash 201269353, now seen corresponding path program 1 times [2020-09-04 15:25:51,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:51,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64663229] [2020-09-04 15:25:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:51,266 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,724 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:51,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:25:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:25:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 15:25:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:51,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64663229] [2020-09-04 15:25:51,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:51,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:25:51,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378092061] [2020-09-04 15:25:51,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:25:51,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:51,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:25:51,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:25:51,917 INFO L87 Difference]: Start difference. First operand 285 states and 309 transitions. Second operand 9 states. [2020-09-04 15:25:52,575 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:53,041 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:25:53,276 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:25:53,514 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:53,785 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:54,078 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:55,083 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:57,974 INFO L93 Difference]: Finished difference Result 781 states and 894 transitions. [2020-09-04 15:25:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:25:57,975 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 15:25:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:57,980 INFO L225 Difference]: With dead ends: 781 [2020-09-04 15:25:57,981 INFO L226 Difference]: Without dead ends: 606 [2020-09-04 15:25:57,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 15:25:57,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-04 15:25:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2020-09-04 15:25:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-09-04 15:25:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 598 transitions. [2020-09-04 15:25:58,198 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 598 transitions. Word has length 163 [2020-09-04 15:25:58,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:58,198 INFO L479 AbstractCegarLoop]: Abstraction has 535 states and 598 transitions. [2020-09-04 15:25:58,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:25:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 598 transitions. [2020-09-04 15:25:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:25:58,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:58,203 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] [2020-09-04 15:25:58,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:25:58,203 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:58,204 INFO L82 PathProgramCache]: Analyzing trace with hash 190259109, now seen corresponding path program 1 times [2020-09-04 15:25:58,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:58,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762083385] [2020-09-04 15:25:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:58,207 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,606 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:25:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:25:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:25:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:25:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:25:58,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762083385] [2020-09-04 15:25:58,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:58,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:25:58,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040768448] [2020-09-04 15:25:58,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:25:58,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:58,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:25:58,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:25:58,840 INFO L87 Difference]: Start difference. First operand 535 states and 598 transitions. Second operand 9 states. [2020-09-04 15:25:59,340 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:26:01,475 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:01,805 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:02,158 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:02,540 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:26:02,895 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:26:03,204 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:03,499 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:26:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:26:04,742 INFO L93 Difference]: Finished difference Result 1472 states and 1755 transitions. [2020-09-04 15:26:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:26:04,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:26:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:26:04,758 INFO L225 Difference]: With dead ends: 1472 [2020-09-04 15:26:04,759 INFO L226 Difference]: Without dead ends: 1047 [2020-09-04 15:26:04,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:26:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-09-04 15:26:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 943. [2020-09-04 15:26:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-09-04 15:26:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1077 transitions. [2020-09-04 15:26:05,151 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1077 transitions. Word has length 172 [2020-09-04 15:26:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:26:05,152 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1077 transitions. [2020-09-04 15:26:05,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:26:05,152 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1077 transitions. [2020-09-04 15:26:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:26:05,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:26:05,158 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] [2020-09-04 15:26:05,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:26:05,158 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:26:05,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:26:05,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times [2020-09-04 15:26:05,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:26:05,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657889251] [2020-09-04 15:26:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:26:05,161 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:26:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:26:05,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:26:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:26:05,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:26:05,507 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:26:05,508 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:26:05,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:26:05,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:26:05 BoogieIcfgContainer [2020-09-04 15:26:05,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:26:05,537 INFO L168 Benchmark]: Toolchain (without parser) took 21909.39 ms. Allocated memory was 139.5 MB in the beginning and 619.7 MB in the end (delta: 480.2 MB). Free memory was 102.9 MB in the beginning and 236.0 MB in the end (delta: -133.1 MB). Peak memory consumption was 347.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:05,538 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 15:26:05,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.65 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 172.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:05,540 INFO L168 Benchmark]: Boogie Preprocessor took 96.43 ms. Allocated memory is still 203.9 MB. Free memory was 172.2 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:05,541 INFO L168 Benchmark]: RCFGBuilder took 1267.99 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 170.8 MB in the end (delta: -2.8 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:05,542 INFO L168 Benchmark]: TraceAbstraction took 19818.59 ms. Allocated memory was 235.9 MB in the beginning and 619.7 MB in the end (delta: 383.8 MB). Free memory was 170.8 MB in the beginning and 236.0 MB in the end (delta: -65.2 MB). Peak memory consumption was 318.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:26:05,546 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 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.65 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.7 MB in the beginning and 172.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.43 ms. Allocated memory is still 203.9 MB. Free memory was 172.2 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1267.99 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 170.8 MB in the end (delta: -2.8 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19818.59 ms. Allocated memory was 235.9 MB in the beginning and 619.7 MB in the end (delta: 383.8 MB). Free memory was 170.8 MB in the beginning and 236.0 MB in the end (delta: -65.2 MB). Peak memory consumption was 318.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; [L601] FCALL select_helpers() [L602] FCALL select_features() [L603] CALL, EXPR valid_product() [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); [L603] RET, EXPR valid_product() [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) [L607] FCALL setup() [L608] CALL runTest() [L587] CALL test() [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) [L722] CALL waterRise() [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 [L722] RET waterRise() [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) [L748] CALL stopSystem() [L987] COND FALSE !(\read(pumpRunning)) [L994] systemActive = 0 [L748] RET stopSystem() [L755] CALL timeShift() [L776] COND FALSE !(\read(pumpRunning)) [L783] COND FALSE !(\read(systemActive)) [L791] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L694] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 658 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1126 SDtfs, 1493 SDslu, 1394 SDs, 0 SdLazy, 3717 SolverSat, 464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred 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: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 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...