/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:09:02,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:09:02,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:09:02,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:09:02,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:09:02,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:09:02,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:09:02,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:09:02,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:09:02,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:09:02,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:09:02,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:09:02,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:09:02,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:09:02,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:09:02,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:09:02,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:09:02,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:09:02,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:09:02,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:09:02,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:09:02,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:09:02,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:09:02,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:09:02,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:09:02,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:09:02,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:09:02,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:09:02,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:09:02,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:09:02,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:09:02,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:09:02,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:09:02,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:09:02,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:09:02,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:09:02,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:09:02,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:09:02,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:09:02,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:09:02,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:09:02,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:09:02,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:09:02,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:09:02,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:09:02,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:09:02,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:09:02,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:09:02,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:09:02,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:09:02,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:09:02,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:09:02,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:09:02,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:09:02,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:09:02,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:09:02,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:09:02,846 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:09:02,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:09:02,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:09:02,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:09:02,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:09:02,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:09:02,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:09:02,847 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:09:03,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:09:03,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:09:03,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:09:03,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:09:03,267 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:09:03,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-10-23 20:09:03,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ddaabf4/5bbd5081e5f745b199f3dca8fedca0ff/FLAG7d6dbf913 [2020-10-23 20:09:04,093 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:09:04,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-10-23 20:09:04,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ddaabf4/5bbd5081e5f745b199f3dca8fedca0ff/FLAG7d6dbf913 [2020-10-23 20:09:04,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ddaabf4/5bbd5081e5f745b199f3dca8fedca0ff [2020-10-23 20:09:04,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:09:04,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:09:04,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:09:04,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:09:04,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:09:04,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:04,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188c54bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04, skipping insertion in model container [2020-10-23 20:09:04,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:04,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:09:04,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:09:04,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:09:04,836 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:09:04,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:09:04,997 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:09:04,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04 WrapperNode [2020-10-23 20:09:04,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:09:05,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:09:05,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:09:05,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:09:05,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... [2020-10-23 20:09:05,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:09:05,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:09:05,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:09:05,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:09:05,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:09:05,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:09:05,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:09:05,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:09:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:09:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:09:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:09:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:09:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:09:05,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:09:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:09:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:09:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:09:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:09:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:09:05,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:09:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:09:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:09:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:09:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:09:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:09:05,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:09:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:09:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:09:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:09:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:09:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:09:05,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:09:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:09:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:09:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:09:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:09:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:09:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:09:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:09:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:09:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:09:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:09:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:09:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:09:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:09:05,252 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:09:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:09:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:09:05,255 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:09:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:09:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:09:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:09:06,621 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:09:06,621 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:09:06,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:09:06 BoogieIcfgContainer [2020-10-23 20:09:06,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:09:06,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:09:06,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:09:06,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:09:06,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:09:04" (1/3) ... [2020-10-23 20:09:06,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53913062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:09:06, skipping insertion in model container [2020-10-23 20:09:06,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:09:04" (2/3) ... [2020-10-23 20:09:06,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53913062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:09:06, skipping insertion in model container [2020-10-23 20:09:06,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:09:06" (3/3) ... [2020-10-23 20:09:06,633 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-10-23 20:09:06,646 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:09:06,652 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:09:06,665 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:09:06,691 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:09:06,691 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:09:06,691 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:09:06,691 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:09:06,692 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:09:06,692 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:09:06,692 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:09:06,692 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:09:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-23 20:09:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:09:06,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:06,736 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] [2020-10-23 20:09:06,737 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:09:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:06,743 INFO L82 PathProgramCache]: Analyzing trace with hash 713881876, now seen corresponding path program 1 times [2020-10-23 20:09:06,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:06,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123047432] [2020-10-23 20:09:06,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:06,831 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,579 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:07,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:09:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:09:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:09:07,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123047432] [2020-10-23 20:09:07,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:07,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:09:07,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999075346] [2020-10-23 20:09:07,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:09:07,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:07,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:09:07,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:09:07,857 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 3 states. [2020-10-23 20:09:09,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:09,522 INFO L93 Difference]: Finished difference Result 449 states and 535 transitions. [2020-10-23 20:09:09,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:09:09,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:09:09,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:09,553 INFO L225 Difference]: With dead ends: 449 [2020-10-23 20:09:09,553 INFO L226 Difference]: Without dead ends: 283 [2020-10-23 20:09:09,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:09:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-23 20:09:09,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 242. [2020-10-23 20:09:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-23 20:09:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions. [2020-10-23 20:09:09,747 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 148 [2020-10-23 20:09:09,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:09,749 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 261 transitions. [2020-10-23 20:09:09,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:09:09,749 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions. [2020-10-23 20:09:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:09:09,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:09,754 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] [2020-10-23 20:09:09,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:09:09,754 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:09:09,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:09,755 INFO L82 PathProgramCache]: Analyzing trace with hash 554497338, now seen corresponding path program 1 times [2020-10-23 20:09:09,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:09,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477247012] [2020-10-23 20:09:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:09,760 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,269 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:10,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:09:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:09:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:09:10,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477247012] [2020-10-23 20:09:10,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:10,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:09:10,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301718822] [2020-10-23 20:09:10,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:09:10,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:10,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:09:10,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:09:10,366 INFO L87 Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 4 states. [2020-10-23 20:09:11,243 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:12,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:12,163 INFO L93 Difference]: Finished difference Result 354 states and 396 transitions. [2020-10-23 20:09:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:09:12,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:09:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:12,168 INFO L225 Difference]: With dead ends: 354 [2020-10-23 20:09:12,168 INFO L226 Difference]: Without dead ends: 266 [2020-10-23 20:09:12,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:09:12,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-23 20:09:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 232. [2020-10-23 20:09:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 20:09:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2020-10-23 20:09:12,277 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 149 [2020-10-23 20:09:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:12,277 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2020-10-23 20:09:12,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:09:12,278 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2020-10-23 20:09:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:09:12,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:12,281 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] [2020-10-23 20:09:12,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:09:12,281 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:09:12,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:12,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1683445838, now seen corresponding path program 1 times [2020-10-23 20:09:12,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:12,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196934723] [2020-10-23 20:09:12,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:12,286 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,801 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:12,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:09:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:12,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:09:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:09:13,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196934723] [2020-10-23 20:09:13,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:13,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:09:13,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646868718] [2020-10-23 20:09:13,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:09:13,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:13,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:09:13,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:09:13,012 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 9 states. [2020-10-23 20:09:13,825 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:14,286 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:14,665 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:15,034 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:15,418 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:15,817 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:17,101 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:19,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:19,157 INFO L93 Difference]: Finished difference Result 594 states and 680 transitions. [2020-10-23 20:09:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:09:19,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:09:19,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:19,163 INFO L225 Difference]: With dead ends: 594 [2020-10-23 20:09:19,164 INFO L226 Difference]: Without dead ends: 477 [2020-10-23 20:09:19,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:09:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-10-23 20:09:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 400. [2020-10-23 20:09:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-23 20:09:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 442 transitions. [2020-10-23 20:09:19,380 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 442 transitions. Word has length 158 [2020-10-23 20:09:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:19,380 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 442 transitions. [2020-10-23 20:09:19,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:09:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 442 transitions. [2020-10-23 20:09:19,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:09:19,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:19,394 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] [2020-10-23 20:09:19,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:09:19,395 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:09:19,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:19,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1411599355, now seen corresponding path program 1 times [2020-10-23 20:09:19,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:19,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224225304] [2020-10-23 20:09:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:19,400 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,860 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:19,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:09:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:09:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:19,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:09:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:09:20,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224225304] [2020-10-23 20:09:20,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:20,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:09:20,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032567989] [2020-10-23 20:09:20,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:09:20,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:20,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:09:20,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:09:20,055 INFO L87 Difference]: Start difference. First operand 400 states and 442 transitions. Second operand 6 states. [2020-10-23 20:09:20,725 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:22,707 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:23,420 INFO L93 Difference]: Finished difference Result 993 states and 1166 transitions. [2020-10-23 20:09:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:09:23,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 20:09:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:23,431 INFO L225 Difference]: With dead ends: 993 [2020-10-23 20:09:23,431 INFO L226 Difference]: Without dead ends: 708 [2020-10-23 20:09:23,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:09:23,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-10-23 20:09:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 590. [2020-10-23 20:09:23,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-10-23 20:09:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 652 transitions. [2020-10-23 20:09:23,719 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 652 transitions. Word has length 166 [2020-10-23 20:09:23,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:23,720 INFO L481 AbstractCegarLoop]: Abstraction has 590 states and 652 transitions. [2020-10-23 20:09:23,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:09:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 652 transitions. [2020-10-23 20:09:23,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:09:23,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:23,723 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] [2020-10-23 20:09:23,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:09:23,723 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:09:23,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1556319341, now seen corresponding path program 1 times [2020-10-23 20:09:23,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:23,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328867248] [2020-10-23 20:09:23,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:23,728 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,189 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:09:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:09:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:09:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:09:24,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328867248] [2020-10-23 20:09:24,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:24,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:09:24,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364796179] [2020-10-23 20:09:24,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:09:24,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:24,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:09:24,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:09:24,427 INFO L87 Difference]: Start difference. First operand 590 states and 652 transitions. Second operand 14 states. [2020-10-23 20:09:25,079 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:25,603 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:26,002 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:26,417 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:26,872 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:27,260 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:28,123 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:29,035 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:29,447 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:29,911 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:30,367 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:30,762 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:09:31,157 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:31,560 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:32,003 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:32,484 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:09:32,887 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:34,080 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:34,471 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:35,015 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:36,607 INFO L93 Difference]: Finished difference Result 1917 states and 2306 transitions. [2020-10-23 20:09:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:09:36,611 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:09:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:36,626 INFO L225 Difference]: With dead ends: 1917 [2020-10-23 20:09:36,627 INFO L226 Difference]: Without dead ends: 1442 [2020-10-23 20:09:36,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:09:36,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2020-10-23 20:09:37,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1323. [2020-10-23 20:09:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1323 states. [2020-10-23 20:09:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1499 transitions. [2020-10-23 20:09:37,310 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1499 transitions. Word has length 167 [2020-10-23 20:09:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:37,310 INFO L481 AbstractCegarLoop]: Abstraction has 1323 states and 1499 transitions. [2020-10-23 20:09:37,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:09:37,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1499 transitions. [2020-10-23 20:09:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:09:37,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:37,317 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:09:37,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:09:37,318 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:09:37,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:37,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1906604638, now seen corresponding path program 1 times [2020-10-23 20:09:37,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:37,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310430815] [2020-10-23 20:09:37,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:37,496 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:09:37,766 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:09:37,992 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:09:38,246 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:09:38,534 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:09:38,802 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:09:39,063 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:09:39,314 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:09:39,564 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:09:39,804 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:09:40,057 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:09:40,287 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:09:40,532 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:09:40,805 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:09:41,250 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:41,580 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:41,914 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:42,230 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:42,566 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:42,931 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:43,298 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:43,652 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:43,657 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:43,977 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:44,303 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:44,629 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:44,955 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:45,277 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:45,618 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:45,945 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:46,276 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:46,279 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:46,604 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:46,923 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:47,241 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:09:47,566 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:47,933 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:48,275 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:09:48,611 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:09:48,938 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:09:48,941 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:50,202 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:09:50,222 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:52,795 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:09:52,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:53,846 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:09:56,371 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:09:58,854 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:00,113 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:02,598 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:02,604 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:05,163 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:05,168 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:05,174 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:07,694 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:07,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:10,209 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:10,214 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:12,726 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:12,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:13,819 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:13,825 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:16,387 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:16,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:17,757 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:17,762 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:20,273 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:20,279 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:22,817 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:22,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:22,827 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:25,350 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:10:25,354 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:27,876 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:27,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:30,370 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:10:30,378 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:32,856 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:10:32,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:35,388 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:10:35,392 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:36,839 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:36,843 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:37,970 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:39,083 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:39,088 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:39,091 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:39,421 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:39,774 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:40,122 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:40,490 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:40,835 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:41,174 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:41,531 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:41,875 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:41,877 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:44,378 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:44,383 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:45,614 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:45,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:48,099 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:48,103 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:49,230 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:49,237 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:51,749 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:51,753 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:54,269 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:54,274 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:56,806 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:56,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:59,352 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:59,356 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:59,360 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:59,704 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:11:00,049 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:11:00,393 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:11:00,742 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:11:01,099 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:01,488 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:01,845 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:02,199 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:11:02,201 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:04,677 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:05,844 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:08,304 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:11:08,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:10,832 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:10,835 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:13,287 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:11:13,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:15,800 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:11:15,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:18,263 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:11:18,267 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:20,750 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:11:20,753 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:20,756 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:23,295 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:24,612 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:24,616 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:27,188 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:27,192 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:29,705 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:29,709 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:32,248 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:34,758 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:34,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:37,372 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:37,376 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:39,894 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:11:39,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:39,900 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:42,388 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:11:42,392 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:44,882 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:44,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:47,390 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:47,393 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:49,962 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:11:49,966 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:52,480 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:11:53,982 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:56,539 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:56,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:58,270 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:11:58,274 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:58,277 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:59,798 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:11:59,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:02,328 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:02,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:04,913 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:04,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:07,466 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:07,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:10,068 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:10,071 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:12,179 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:12,182 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:14,718 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:17,279 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:12:17,283 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:17,642 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:18,008 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:18,390 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:18,775 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:19,164 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:19,549 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:19,913 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:20,271 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:12:20,274 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:12:20,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:12:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:12:21,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:12:21,533 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:12:21,533 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:12:21,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:12:21,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:12:21 BoogieIcfgContainer [2020-10-23 20:12:21,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:12:21,576 INFO L168 Benchmark]: Toolchain (without parser) took 197229.40 ms. Allocated memory was 155.2 MB in the beginning and 664.8 MB in the end (delta: 509.6 MB). Free memory was 110.9 MB in the beginning and 548.7 MB in the end (delta: -437.8 MB). Peak memory consumption was 398.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:21,576 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:12:21,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.78 ms. Allocated memory is still 155.2 MB. Free memory was 110.3 MB in the beginning and 131.2 MB in the end (delta: -20.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:21,582 INFO L168 Benchmark]: Boogie Preprocessor took 151.84 ms. Allocated memory is still 155.2 MB. Free memory was 131.2 MB in the beginning and 127.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:21,583 INFO L168 Benchmark]: RCFGBuilder took 1472.06 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 127.1 MB in the beginning and 107.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:21,583 INFO L168 Benchmark]: TraceAbstraction took 194945.34 ms. Allocated memory was 192.9 MB in the beginning and 664.8 MB in the end (delta: 471.9 MB). Free memory was 107.4 MB in the beginning and 548.7 MB in the end (delta: -441.3 MB). Peak memory consumption was 356.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:21,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 647.78 ms. Allocated memory is still 155.2 MB. Free memory was 110.3 MB in the beginning and 131.2 MB in the end (delta: -20.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.84 ms. Allocated memory is still 155.2 MB. Free memory was 131.2 MB in the beginning and 127.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1472.06 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 127.1 MB in the beginning and 107.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 194945.34 ms. Allocated memory was 192.9 MB in the beginning and 664.8 MB in the end (delta: 471.9 MB). Free memory was 107.4 MB in the beginning and 548.7 MB in the end (delta: -441.3 MB). Peak memory consumption was 356.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; [L393] int retValue_acc ; [L394] int tmp ; [L398] FCALL select_helpers() [L399] FCALL select_features() [L400] CALL, EXPR valid_product() [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); [L400] RET, EXPR valid_product() [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) [L404] FCALL setup() [L405] CALL runTest() [L384] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L305] COND FALSE !(\read(pumpRunning)) [L312] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L157] COND FALSE !(\read(pumpRunning)) [L164] COND FALSE !(\read(systemActive)) [L172] CALL __utac_acc__Specification4_spec__1() [L118] int tmp ; [L119] int tmp___0 ; [L123] CALL, EXPR getWaterLevel() [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); [L123] RET, EXPR getWaterLevel() [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) [L172] RET __utac_acc__Specification4_spec__1() [L102] RET timeShift() [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L157] COND FALSE !(\read(pumpRunning)) [L164] COND FALSE !(\read(systemActive)) [L172] CALL __utac_acc__Specification4_spec__1() [L118] int tmp ; [L119] int tmp___0 ; [L123] CALL, EXPR getWaterLevel() [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); [L123] RET, EXPR getWaterLevel() [L123] tmp = getWaterLevel() [L125] COND TRUE tmp == 0 [L127] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L127] RET, EXPR isPumpRunning() [L127] tmp___0 = isPumpRunning() [L129] COND TRUE \read(tmp___0) [L131] CALL __automaton_fail() [L786] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 194.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1149 SDtfs, 2093 SDslu, 2052 SDs, 0 SdLazy, 4087 SolverSat, 733 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1323occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 389 StatesRemovedByMinimization, 5 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...