/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 0.1.25-3af5e1f [2020-09-04 15:24:53,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:24:53,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:24:53,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:24:53,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:24:53,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:24:53,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:24:53,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:24:53,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:24:53,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:24:53,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:24:53,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:24:53,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:24:53,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:24:53,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:24:53,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:24:53,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:24:53,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:24:53,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:24:53,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:24:53,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:24:53,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:24:53,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:24:53,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:24:53,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:24:53,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:24:53,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:24:53,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:24:53,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:24:53,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:24:53,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:24:53,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:24:53,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:24:53,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:24:53,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:24:53,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:24:53,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:24:53,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:24:53,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:24:53,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:24:53,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:24:53,326 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 15:24:53,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:24:53,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:24:53,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:24:53,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:24:53,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:24:53,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:24:53,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:24:53,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:24:53,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:24:53,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:24:53,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:24:53,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:24:53,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:24:53,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:24:53,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:24:53,345 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:24:53,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:24:53,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:24:53,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:24:53,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:24:53,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:24:53,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:24:53,347 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:24:53,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:24:53,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:24:53,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:24:53,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:24:53,793 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:24:53,794 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-04 15:24:53,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6091e4f4d/6d3e6430f0bf4f7ba942ec9382be8baa/FLAG8eeebf062 [2020-09-04 15:24:54,502 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:24:54,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-04 15:24:54,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6091e4f4d/6d3e6430f0bf4f7ba942ec9382be8baa/FLAG8eeebf062 [2020-09-04 15:24:54,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6091e4f4d/6d3e6430f0bf4f7ba942ec9382be8baa [2020-09-04 15:24:54,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:24:54,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:24:54,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:24:54,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:24:54,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:24:54,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:24:54" (1/1) ... [2020-09-04 15:24:54,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:54, skipping insertion in model container [2020-09-04 15:24:54,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:24:54" (1/1) ... [2020-09-04 15:24:54,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:24:54,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:24:55,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:24:55,390 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:24:55,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:24:55,562 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:24:55,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55 WrapperNode [2020-09-04 15:24:55,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:24:55,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:24:55,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:24:55,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:24:55,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (1/1) ... [2020-09-04 15:24:55,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:24:55,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:24:55,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:24:55,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:24:55,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (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 15:24:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:24:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:24:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:24:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:24:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:24:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:24:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:24:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:24:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:24:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:24:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:24:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:24:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:24:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:24:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:24:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:24:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:24:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:24:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:24:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:24:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 15:24:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:24:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:24:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:24:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:24:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:24:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:24:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:24:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:24:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:24:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:24:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:24:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:24:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:24:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:24:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:24:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:24:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:24:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:24:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:24:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:24:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:24:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:24:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:24:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:24:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:24:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:24:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:24:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:24:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:24:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:24:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:24:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:24:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:24:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:24:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:24:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:24:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:24:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 15:24:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:24:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:24:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:24:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:24:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:24:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:24:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:24:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:24:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:24:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:24:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:24:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:24:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:24:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:24:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:24:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:24:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:24:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:24:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:24:56,850 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:24:56,850 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:24:56,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:24:56 BoogieIcfgContainer [2020-09-04 15:24:56,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:24:56,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:24:56,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:24:56,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:24:56,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:24:54" (1/3) ... [2020-09-04 15:24:56,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498503b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:24:56, skipping insertion in model container [2020-09-04 15:24:56,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:55" (2/3) ... [2020-09-04 15:24:56,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498503b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:24:56, skipping insertion in model container [2020-09-04 15:24:56,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:24:56" (3/3) ... [2020-09-04 15:24:56,868 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-04 15:24:56,880 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:24:56,892 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:24:56,916 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:24:56,949 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:24:56,949 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:24:56,950 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:24:56,950 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:24:56,950 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:24:56,950 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:24:56,950 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:24:56,950 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:24:56,985 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-04 15:24:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:24:57,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:57,033 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 15:24:57,034 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:57,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:57,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-04 15:24:57,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:57,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820961104] [2020-09-04 15:24:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:57,157 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,843 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:57,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:24:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:24:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:57,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:24:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:58,017 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 15:24:58,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820961104] [2020-09-04 15:24:58,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:58,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:24:58,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257090174] [2020-09-04 15:24:58,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:24:58,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:58,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:24:58,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:24:58,051 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-09-04 15:24:59,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:59,578 INFO L93 Difference]: Finished difference Result 532 states and 635 transitions. [2020-09-04 15:24:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:24:59,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:24:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:59,601 INFO L225 Difference]: With dead ends: 532 [2020-09-04 15:24:59,602 INFO L226 Difference]: Without dead ends: 326 [2020-09-04 15:24:59,609 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 15:24:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-04 15:24:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 280. [2020-09-04 15:24:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-04 15:24:59,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 307 transitions. [2020-09-04 15:24:59,764 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 307 transitions. Word has length 153 [2020-09-04 15:24:59,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:59,765 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 307 transitions. [2020-09-04 15:24:59,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:24:59,766 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 307 transitions. [2020-09-04 15:24:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:24:59,770 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:59,770 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 15:24:59,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:24:59,771 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:59,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1744708548, now seen corresponding path program 1 times [2020-09-04 15:24:59,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:59,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677804018] [2020-09-04 15:24:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:59,776 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,225 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:25:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:25:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:25:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:00,350 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 15:25:00,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677804018] [2020-09-04 15:25:00,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:00,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:25:00,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199525912] [2020-09-04 15:25:00,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:25:00,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:00,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:25:00,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:25:00,355 INFO L87 Difference]: Start difference. First operand 280 states and 307 transitions. Second operand 4 states. [2020-09-04 15:25:01,006 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:02,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:02,239 INFO L93 Difference]: Finished difference Result 439 states and 498 transitions. [2020-09-04 15:25:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:25:02,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:25:02,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:02,246 INFO L225 Difference]: With dead ends: 439 [2020-09-04 15:25:02,246 INFO L226 Difference]: Without dead ends: 309 [2020-09-04 15:25:02,248 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 15:25:02,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-04 15:25:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 270. [2020-09-04 15:25:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-04 15:25:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 294 transitions. [2020-09-04 15:25:02,348 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 294 transitions. Word has length 154 [2020-09-04 15:25:02,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:02,349 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 294 transitions. [2020-09-04 15:25:02,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:25:02,349 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 294 transitions. [2020-09-04 15:25:02,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:25:02,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:02,351 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] [2020-09-04 15:25:02,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:25:02,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:02,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1330649895, now seen corresponding path program 1 times [2020-09-04 15:25:02,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:02,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153758882] [2020-09-04 15:25:02,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:02,356 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,798 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:02,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:25:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:25:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:25:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:25:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:02,971 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 15:25:02,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153758882] [2020-09-04 15:25:02,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:02,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:25:02,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510782678] [2020-09-04 15:25:02,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:25:02,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:02,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:25:02,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:25:02,979 INFO L87 Difference]: Start difference. First operand 270 states and 294 transitions. Second operand 10 states. [2020-09-04 15:25:03,648 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:04,115 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:25:04,447 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:25:04,686 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:04,955 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:05,244 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:06,228 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:09,193 INFO L93 Difference]: Finished difference Result 760 states and 888 transitions. [2020-09-04 15:25:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:25:09,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:25:09,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:09,199 INFO L225 Difference]: With dead ends: 760 [2020-09-04 15:25:09,200 INFO L226 Difference]: Without dead ends: 600 [2020-09-04 15:25:09,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:25:09,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-04 15:25:09,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 501. [2020-09-04 15:25:09,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-04 15:25:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 564 transitions. [2020-09-04 15:25:09,388 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 564 transitions. Word has length 167 [2020-09-04 15:25:09,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:09,389 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 564 transitions. [2020-09-04 15:25:09,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:25:09,390 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 564 transitions. [2020-09-04 15:25:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:25:09,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:09,393 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 15:25:09,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:25:09,394 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:09,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:09,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1800368934, now seen corresponding path program 1 times [2020-09-04 15:25:09,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:09,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469214536] [2020-09-04 15:25:09,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:09,397 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,787 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:09,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:25:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:25:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:25:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:25:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:09,952 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 15:25:09,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469214536] [2020-09-04 15:25:09,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:09,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:25:09,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304062571] [2020-09-04 15:25:09,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:25:09,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:09,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:25:09,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:25:09,955 INFO L87 Difference]: Start difference. First operand 501 states and 564 transitions. Second operand 9 states. [2020-09-04 15:25:10,618 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:12,706 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:13,070 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:13,419 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:13,780 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:14,097 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:14,394 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:14,686 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:15,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:15,944 INFO L93 Difference]: Finished difference Result 1373 states and 1659 transitions. [2020-09-04 15:25:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:25:15,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:25:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:15,960 INFO L225 Difference]: With dead ends: 1373 [2020-09-04 15:25:15,961 INFO L226 Difference]: Without dead ends: 982 [2020-09-04 15:25:15,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:25:15,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-04 15:25:16,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 875. [2020-09-04 15:25:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2020-09-04 15:25:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1009 transitions. [2020-09-04 15:25:16,331 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1009 transitions. Word has length 172 [2020-09-04 15:25:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:16,332 INFO L479 AbstractCegarLoop]: Abstraction has 875 states and 1009 transitions. [2020-09-04 15:25:16,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:25:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1009 transitions. [2020-09-04 15:25:16,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:25:16,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:16,337 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 15:25:16,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:25:16,338 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:16,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:16,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-04 15:25:16,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:16,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658681787] [2020-09-04 15:25:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:16,341 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:25:16,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:25:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:25:16,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:25:16,711 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:25:16,711 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:25:16,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:25:16,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:25:16 BoogieIcfgContainer [2020-09-04 15:25:16,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:25:16,745 INFO L168 Benchmark]: Toolchain (without parser) took 21942.02 ms. Allocated memory was 139.5 MB in the beginning and 658.0 MB in the end (delta: 518.5 MB). Free memory was 101.3 MB in the beginning and 560.9 MB in the end (delta: -459.6 MB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:16,746 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:25:16,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.42 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 171.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:16,748 INFO L168 Benchmark]: Boogie Preprocessor took 102.28 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 167.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:16,749 INFO L168 Benchmark]: RCFGBuilder took 1192.32 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 167.4 MB in the beginning and 173.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:16,750 INFO L168 Benchmark]: TraceAbstraction took 19883.33 ms. Allocated memory was 237.5 MB in the beginning and 658.0 MB in the end (delta: 420.5 MB). Free memory was 173.9 MB in the beginning and 560.9 MB in the end (delta: -387.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:16,754 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.42 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 171.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.28 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 167.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.32 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 167.4 MB in the beginning and 173.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19883.33 ms. Allocated memory was 237.5 MB in the beginning and 658.0 MB in the end (delta: 420.5 MB). Free memory was 173.9 MB in the beginning and 560.9 MB in the end (delta: -387.0 MB). Peak memory consumption was 33.5 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: 19.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.7s, 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, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.7s 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: 0.7s 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...