/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_spec2_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:53:42,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:53:42,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:53:42,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:53:42,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:53:42,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:53:42,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:53:42,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:53:42,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:53:42,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:53:42,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:53:42,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:53:42,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:53:42,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:53:42,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:53:42,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:53:42,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:53:42,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:53:42,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:53:42,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:53:42,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:53:42,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:53:42,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:53:42,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:53:42,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:53:42,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:53:42,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:53:42,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:53:42,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:53:42,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:53:42,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:53:42,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:53:42,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:53:42,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:53:42,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:53:42,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:53:42,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:53:42,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:53:42,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:53:42,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:53:42,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:53:42,768 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 19:53:42,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:53:42,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:53:42,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:53:42,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:53:42,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:53:42,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:53:42,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:53:42,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:53:42,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:53:42,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:53:42,798 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:53:42,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:53:42,799 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:53:42,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:53:42,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:53:42,799 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:53:42,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:53:42,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:53:42,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:53:42,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:53:42,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:53:42,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:53:42,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:53:43,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:53:43,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:53:43,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:53:43,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:53:43,227 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:53:43,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-10-23 19:53:43,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4361b0b/b6d5583d53ee4358a2085d02a1b44fc9/FLAG5a7c87ab3 [2020-10-23 19:53:43,993 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:53:43,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-10-23 19:53:44,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4361b0b/b6d5583d53ee4358a2085d02a1b44fc9/FLAG5a7c87ab3 [2020-10-23 19:53:44,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4361b0b/b6d5583d53ee4358a2085d02a1b44fc9 [2020-10-23 19:53:44,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:53:44,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:53:44,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:44,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:53:44,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:53:44,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37159f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44, skipping insertion in model container [2020-10-23 19:53:44,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:53:44,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:53:44,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:44,693 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:53:44,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:44,840 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:53:44,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44 WrapperNode [2020-10-23 19:53:44,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:44,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:53:44,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:53:44,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:53:44,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (1/1) ... [2020-10-23 19:53:44,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:53:44,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:53:44,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:53:44,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:53:44,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (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 19:53:45,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:53:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:53:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:53:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:53:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:53:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:53:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:53:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:53:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:45,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:45,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:53:45,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:53:45,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:53:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:53:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:53:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:53:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:53:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:53:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:53:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:53:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:53:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:53:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:53:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:53:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:53:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:53:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:53:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:53:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:53:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:53:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:53:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:53:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:53:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:53:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:53:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:53:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:53:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:53:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:53:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:53:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:53:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:53:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:53:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:53:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:53:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:53:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:53:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:53:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:53:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:53:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:53:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:53:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:53:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:53:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:53:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:53:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:53:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:53:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:53:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:53:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:53:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:53:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:53:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:53:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:53:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:53:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:53:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:53:46,474 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:53:46,475 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:53:46,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:46 BoogieIcfgContainer [2020-10-23 19:53:46,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:53:46,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:53:46,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:53:46,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:53:46,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:53:44" (1/3) ... [2020-10-23 19:53:46,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c39b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:46, skipping insertion in model container [2020-10-23 19:53:46,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:44" (2/3) ... [2020-10-23 19:53:46,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c39b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:46, skipping insertion in model container [2020-10-23 19:53:46,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:46" (3/3) ... [2020-10-23 19:53:46,488 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2020-10-23 19:53:46,500 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:53:46,506 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:53:46,520 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:53:46,546 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:53:46,546 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:53:46,546 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:53:46,546 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:53:46,546 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:53:46,547 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:53:46,547 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:53:46,547 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:53:46,571 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-10-23 19:53:46,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:53:46,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:46,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:46,596 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 19:53:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:46,603 INFO L82 PathProgramCache]: Analyzing trace with hash 579000772, now seen corresponding path program 1 times [2020-10-23 19:53:46,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:46,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347385470] [2020-10-23 19:53:46,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:46,698 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,521 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:47,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:53:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,719 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 19:53:47,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347385470] [2020-10-23 19:53:47,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:47,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:53:47,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789026116] [2020-10-23 19:53:47,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:53:47,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:47,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:53:47,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:47,746 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 4 states. [2020-10-23 19:53:49,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:49,669 INFO L93 Difference]: Finished difference Result 525 states and 625 transitions. [2020-10-23 19:53:49,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:53:49,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:53:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:49,691 INFO L225 Difference]: With dead ends: 525 [2020-10-23 19:53:49,691 INFO L226 Difference]: Without dead ends: 332 [2020-10-23 19:53:49,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-23 19:53:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 280. [2020-10-23 19:53:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-23 19:53:49,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 307 transitions. [2020-10-23 19:53:49,950 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 307 transitions. Word has length 154 [2020-10-23 19:53:49,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:49,953 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 307 transitions. [2020-10-23 19:53:49,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:53:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 307 transitions. [2020-10-23 19:53:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:53:49,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:49,967 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] [2020-10-23 19:53:49,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:53:49,968 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 19:53:49,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:49,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1131080624, now seen corresponding path program 1 times [2020-10-23 19:53:49,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:49,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644901858] [2020-10-23 19:53:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:49,975 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,585 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:50,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:53:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:53:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:50,690 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 19:53:50,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644901858] [2020-10-23 19:53:50,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:50,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:53:50,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312693539] [2020-10-23 19:53:50,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:53:50,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:53:50,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:53:50,693 INFO L87 Difference]: Start difference. First operand 280 states and 307 transitions. Second operand 5 states. [2020-10-23 19:53:51,628 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:53,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:53,095 INFO L93 Difference]: Finished difference Result 445 states and 508 transitions. [2020-10-23 19:53:53,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:53:53,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:53:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:53,102 INFO L225 Difference]: With dead ends: 445 [2020-10-23 19:53:53,102 INFO L226 Difference]: Without dead ends: 321 [2020-10-23 19:53:53,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:53:53,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-23 19:53:53,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 270. [2020-10-23 19:53:53,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-23 19:53:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 294 transitions. [2020-10-23 19:53:53,221 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 294 transitions. Word has length 155 [2020-10-23 19:53:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:53,221 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 294 transitions. [2020-10-23 19:53:53,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:53:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 294 transitions. [2020-10-23 19:53:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-23 19:53:53,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:53,225 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] [2020-10-23 19:53:53,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:53:53,225 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 19:53:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:53,226 INFO L82 PathProgramCache]: Analyzing trace with hash -299266193, now seen corresponding path program 1 times [2020-10-23 19:53:53,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:53,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113980767] [2020-10-23 19:53:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:53,230 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,686 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:53:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:53:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:53,963 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 19:53:53,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113980767] [2020-10-23 19:53:53,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:53,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:53:53,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015906640] [2020-10-23 19:53:53,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:53:53,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:53,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:53:53,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:53:53,967 INFO L87 Difference]: Start difference. First operand 270 states and 294 transitions. Second operand 10 states. [2020-10-23 19:53:54,703 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:55,208 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:55,622 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:53:56,081 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:56,481 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:56,890 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:58,201 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:01,462 INFO L93 Difference]: Finished difference Result 720 states and 840 transitions. [2020-10-23 19:54:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:54:01,463 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-23 19:54:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:01,470 INFO L225 Difference]: With dead ends: 720 [2020-10-23 19:54:01,471 INFO L226 Difference]: Without dead ends: 570 [2020-10-23 19:54:01,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:54:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-23 19:54:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 487. [2020-10-23 19:54:01,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-10-23 19:54:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 550 transitions. [2020-10-23 19:54:01,754 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 550 transitions. Word has length 164 [2020-10-23 19:54:01,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:01,757 INFO L481 AbstractCegarLoop]: Abstraction has 487 states and 550 transitions. [2020-10-23 19:54:01,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:54:01,757 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 550 transitions. [2020-10-23 19:54:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:54:01,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:01,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:01,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:54:01,764 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 19:54:01,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:01,767 INFO L82 PathProgramCache]: Analyzing trace with hash 557710600, now seen corresponding path program 1 times [2020-10-23 19:54:01,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:01,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404582355] [2020-10-23 19:54:01,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:01,774 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,256 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:02,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 19:54:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:54:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:54:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:02,447 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 19:54:02,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404582355] [2020-10-23 19:54:02,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:02,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:54:02,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595094940] [2020-10-23 19:54:02,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:54:02,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:02,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:54:02,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:54:02,451 INFO L87 Difference]: Start difference. First operand 487 states and 550 transitions. Second operand 10 states. [2020-10-23 19:54:03,223 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:04,787 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:05,261 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:05,903 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:06,379 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:07,157 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:07,657 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:08,094 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:08,784 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:10,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:10,718 INFO L93 Difference]: Finished difference Result 1349 states and 1639 transitions. [2020-10-23 19:54:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:54:10,718 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:54:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:10,726 INFO L225 Difference]: With dead ends: 1349 [2020-10-23 19:54:10,727 INFO L226 Difference]: Without dead ends: 982 [2020-10-23 19:54:10,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:54:10,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-10-23 19:54:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 805. [2020-10-23 19:54:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-23 19:54:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 923 transitions. [2020-10-23 19:54:11,090 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 923 transitions. Word has length 173 [2020-10-23 19:54:11,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:11,091 INFO L481 AbstractCegarLoop]: Abstraction has 805 states and 923 transitions. [2020-10-23 19:54:11,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:54:11,091 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 923 transitions. [2020-10-23 19:54:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:54:11,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:11,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:11,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:54:11,096 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 19:54:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:11,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1462216162, now seen corresponding path program 1 times [2020-10-23 19:54:11,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:11,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274667094] [2020-10-23 19:54:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:11,101 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,528 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:54:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:54:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:54:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,729 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 19:54:11,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274667094] [2020-10-23 19:54:11,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:11,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:54:11,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502454405] [2020-10-23 19:54:11,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:54:11,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:11,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:54:11,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:54:11,738 INFO L87 Difference]: Start difference. First operand 805 states and 923 transitions. Second operand 11 states. [2020-10-23 19:54:12,458 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:14,266 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:14,678 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:15,110 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:15,553 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:15,965 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:17,164 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:17,604 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:18,092 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:19,955 INFO L93 Difference]: Finished difference Result 2109 states and 2628 transitions. [2020-10-23 19:54:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 19:54:19,956 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-10-23 19:54:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:19,967 INFO L225 Difference]: With dead ends: 2109 [2020-10-23 19:54:19,967 INFO L226 Difference]: Without dead ends: 1424 [2020-10-23 19:54:19,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 19:54:19,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-10-23 19:54:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1135. [2020-10-23 19:54:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-10-23 19:54:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1297 transitions. [2020-10-23 19:54:20,459 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1297 transitions. Word has length 178 [2020-10-23 19:54:20,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:20,460 INFO L481 AbstractCegarLoop]: Abstraction has 1135 states and 1297 transitions. [2020-10-23 19:54:20,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:20,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1297 transitions. [2020-10-23 19:54:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-23 19:54:20,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:20,466 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:20,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:54:20,466 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 19:54:20,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:20,467 INFO L82 PathProgramCache]: Analyzing trace with hash 502804836, now seen corresponding path program 1 times [2020-10-23 19:54:20,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:20,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123281322] [2020-10-23 19:54:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:20,471 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:20,917 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:20,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:20,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 19:54:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 19:54:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:21,255 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 19:54:21,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123281322] [2020-10-23 19:54:21,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:21,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:54:21,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074027810] [2020-10-23 19:54:21,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:54:21,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:54:21,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:54:21,258 INFO L87 Difference]: Start difference. First operand 1135 states and 1297 transitions. Second operand 14 states. [2020-10-23 19:54:22,095 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:22,551 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:22,993 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:23,395 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:23,768 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:25,042 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:25,432 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:25,865 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:26,309 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:26,709 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:28,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:28,995 INFO L93 Difference]: Finished difference Result 2593 states and 3222 transitions. [2020-10-23 19:54:28,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:54:28,996 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 229 [2020-10-23 19:54:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:29,009 INFO L225 Difference]: With dead ends: 2593 [2020-10-23 19:54:29,009 INFO L226 Difference]: Without dead ends: 1578 [2020-10-23 19:54:29,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:54:29,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2020-10-23 19:54:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1165. [2020-10-23 19:54:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2020-10-23 19:54:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1329 transitions. [2020-10-23 19:54:29,590 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1329 transitions. Word has length 229 [2020-10-23 19:54:29,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:29,591 INFO L481 AbstractCegarLoop]: Abstraction has 1165 states and 1329 transitions. [2020-10-23 19:54:29,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:54:29,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1329 transitions. [2020-10-23 19:54:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-23 19:54:29,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:29,596 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:29,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:54:29,597 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 19:54:29,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1277502916, now seen corresponding path program 1 times [2020-10-23 19:54:29,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:29,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257959716] [2020-10-23 19:54:29,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:29,601 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,966 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:29,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 19:54:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 19:54:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,186 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 19:54:30,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257959716] [2020-10-23 19:54:30,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:30,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:54:30,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016548391] [2020-10-23 19:54:30,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:54:30,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:30,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:54:30,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:54:30,188 INFO L87 Difference]: Start difference. First operand 1165 states and 1329 transitions. Second operand 11 states. [2020-10-23 19:54:31,959 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:32,387 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:32,855 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:54:33,287 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:33,736 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:34,107 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:35,890 INFO L93 Difference]: Finished difference Result 2643 states and 3274 transitions. [2020-10-23 19:54:35,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:54:35,891 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2020-10-23 19:54:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:35,901 INFO L225 Difference]: With dead ends: 2643 [2020-10-23 19:54:35,902 INFO L226 Difference]: Without dead ends: 1598 [2020-10-23 19:54:35,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:54:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2020-10-23 19:54:36,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1197. [2020-10-23 19:54:36,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-10-23 19:54:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1361 transitions. [2020-10-23 19:54:36,441 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1361 transitions. Word has length 229 [2020-10-23 19:54:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:36,441 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 1361 transitions. [2020-10-23 19:54:36,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1361 transitions. [2020-10-23 19:54:36,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-23 19:54:36,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:36,446 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:36,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:54:36,446 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 19:54:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:36,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1568231943, now seen corresponding path program 1 times [2020-10-23 19:54:36,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:36,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553800337] [2020-10-23 19:54:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:36,451 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,811 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:36,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 19:54:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 19:54:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:37,043 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 19:54:37,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553800337] [2020-10-23 19:54:37,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:37,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:54:37,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300385203] [2020-10-23 19:54:37,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:54:37,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:37,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:54:37,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:54:37,045 INFO L87 Difference]: Start difference. First operand 1197 states and 1361 transitions. Second operand 8 states. [2020-10-23 19:54:37,722 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:38,602 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:43,108 INFO L93 Difference]: Finished difference Result 4015 states and 5002 transitions. [2020-10-23 19:54:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 19:54:43,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 229 [2020-10-23 19:54:43,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:43,127 INFO L225 Difference]: With dead ends: 4015 [2020-10-23 19:54:43,127 INFO L226 Difference]: Without dead ends: 2938 [2020-10-23 19:54:43,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:54:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2020-10-23 19:54:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2365. [2020-10-23 19:54:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2365 states. [2020-10-23 19:54:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 2719 transitions. [2020-10-23 19:54:44,045 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 2719 transitions. Word has length 229 [2020-10-23 19:54:44,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:44,045 INFO L481 AbstractCegarLoop]: Abstraction has 2365 states and 2719 transitions. [2020-10-23 19:54:44,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:54:44,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 2719 transitions. [2020-10-23 19:54:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-23 19:54:44,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:44,051 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:44,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:54:44,051 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 19:54:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:44,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1863597788, now seen corresponding path program 1 times [2020-10-23 19:54:44,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:44,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579777559] [2020-10-23 19:54:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:44,056 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,475 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:44,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:54:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:54:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:54:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:45,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:45,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:45,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:54:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-23 19:54:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:45,126 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 19:54:45,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579777559] [2020-10-23 19:54:45,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:45,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-23 19:54:45,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889008986] [2020-10-23 19:54:45,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-23 19:54:45,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:45,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-23 19:54:45,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:54:45,128 INFO L87 Difference]: Start difference. First operand 2365 states and 2719 transitions. Second operand 21 states. [2020-10-23 19:54:45,887 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:46,421 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:46,844 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 19:54:47,329 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:47,798 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:48,225 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:49,417 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:50,512 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:50,968 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:51,588 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:52,056 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:54,325 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:54,906 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:55,314 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:55,741 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:56,190 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:56,757 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:57,198 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:57,665 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:58,562 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 19:54:59,499 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-10-23 19:55:00,278 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 19:55:03,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:03,801 INFO L93 Difference]: Finished difference Result 5106 states and 6118 transitions. [2020-10-23 19:55:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-23 19:55:03,801 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 234 [2020-10-23 19:55:03,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:03,818 INFO L225 Difference]: With dead ends: 5106 [2020-10-23 19:55:03,819 INFO L226 Difference]: Without dead ends: 2861 [2020-10-23 19:55:03,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=890, Invalid=3802, Unknown=0, NotChecked=0, Total=4692 [2020-10-23 19:55:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2020-10-23 19:55:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2317. [2020-10-23 19:55:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2317 states. [2020-10-23 19:55:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2651 transitions. [2020-10-23 19:55:04,921 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2651 transitions. Word has length 234 [2020-10-23 19:55:04,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:04,922 INFO L481 AbstractCegarLoop]: Abstraction has 2317 states and 2651 transitions. [2020-10-23 19:55:04,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-23 19:55:04,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2651 transitions. [2020-10-23 19:55:04,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-23 19:55:04,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:04,931 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:55:04,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:55:04,931 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 19:55:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:04,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1194424157, now seen corresponding path program 1 times [2020-10-23 19:55:04,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:04,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589224361] [2020-10-23 19:55:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:04,960 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 19:55:04,964 INFO L168 Benchmark]: Toolchain (without parser) took 80650.85 ms. Allocated memory was 151.0 MB in the beginning and 986.7 MB in the end (delta: 835.7 MB). Free memory was 125.8 MB in the beginning and 711.1 MB in the end (delta: -585.3 MB). Peak memory consumption was 252.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:04,965 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:55:04,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.04 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 103.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:04,966 INFO L168 Benchmark]: Boogie Preprocessor took 96.87 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 99.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:04,967 INFO L168 Benchmark]: RCFGBuilder took 1537.77 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 99.6 MB in the beginning and 144.3 MB in the end (delta: -44.7 MB). Peak memory consumption was 54.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:04,967 INFO L168 Benchmark]: TraceAbstraction took 78483.12 ms. Allocated memory was 185.6 MB in the beginning and 986.7 MB in the end (delta: 801.1 MB). Free memory was 143.8 MB in the beginning and 711.1 MB in the end (delta: -567.3 MB). Peak memory consumption was 233.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:04,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 518.04 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 103.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.87 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 99.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1537.77 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 99.6 MB in the beginning and 144.3 MB in the end (delta: -44.7 MB). Peak memory consumption was 54.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 78483.12 ms. Allocated memory was 185.6 MB in the beginning and 986.7 MB in the end (delta: 801.1 MB). Free memory was 143.8 MB in the beginning and 711.1 MB in the end (delta: -567.3 MB). Peak memory consumption was 233.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...