/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 15:10:57,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 15:10:57,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 15:10:57,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 15:10:57,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 15:10:57,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 15:10:57,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 15:10:57,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 15:10:57,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 15:10:57,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 15:10:57,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 15:10:57,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 15:10:57,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 15:10:57,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 15:10:57,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 15:10:57,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 15:10:57,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 15:10:57,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 15:10:57,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 15:10:57,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 15:10:57,332 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 15:10:57,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 15:10:57,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 15:10:57,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 15:10:57,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 15:10:57,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 15:10:57,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 15:10:57,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 15:10:57,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 15:10:57,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 15:10:57,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 15:10:57,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 15:10:57,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 15:10:57,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 15:10:57,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 15:10:57,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 15:10:57,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 15:10:57,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 15:10:57,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 15:10:57,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 15:10:57,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 15:10:57,364 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 15:10:57,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 15:10:57,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 15:10:57,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 15:10:57,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 15:10:57,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 15:10:57,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 15:10:57,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 15:10:57,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 15:10:57,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 15:10:57,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 15:10:57,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 15:10:57,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 15:10:57,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 15:10:57,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 15:10:57,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 15:10:57,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 15:10:57,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 15:10:57,367 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 15:10:57,367 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 15:10:57,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 15:10:57,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 15:10:57,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 15:10:57,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 15:10:57,617 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 15:10:57,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2022-03-17 15:10:57,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba81ad4c0/21c8aea99e4e4d189633a09f7fb91d54/FLAGd676f6eaa [2022-03-17 15:10:58,097 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 15:10:58,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2022-03-17 15:10:58,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba81ad4c0/21c8aea99e4e4d189633a09f7fb91d54/FLAGd676f6eaa [2022-03-17 15:10:58,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba81ad4c0/21c8aea99e4e4d189633a09f7fb91d54 [2022-03-17 15:10:58,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 15:10:58,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 15:10:58,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 15:10:58,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 15:10:58,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 15:10:58,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72fd7553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58, skipping insertion in model container [2022-03-17 15:10:58,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 15:10:58,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 15:10:58,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c[11342,11355] [2022-03-17 15:10:58,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 15:10:58,721 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 15:10:58,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c[11342,11355] [2022-03-17 15:10:58,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 15:10:58,780 INFO L208 MainTranslator]: Completed translation [2022-03-17 15:10:58,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58 WrapperNode [2022-03-17 15:10:58,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 15:10:58,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 15:10:58,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 15:10:58,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 15:10:58,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 15:10:58,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 15:10:58,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 15:10:58,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 15:10:58,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (1/1) ... [2022-03-17 15:10:58,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 15:10:58,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 15:10:58,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 15:10:58,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 15:10:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 15:10:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 15:10:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 15:10:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-17 15:10:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2022-03-17 15:10:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2022-03-17 15:10:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 15:10:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-17 15:10:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-03-17 15:10:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 15:10:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 15:10:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 15:10:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 15:10:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 15:10:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-17 15:10:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 15:10:58,997 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 15:10:58,998 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 15:10:59,441 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 15:10:59,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 15:10:59,451 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-03-17 15:10:59,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:10:59 BoogieIcfgContainer [2022-03-17 15:10:59,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 15:10:59,454 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 15:10:59,454 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 15:10:59,455 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 15:10:59,457 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:10:59" (1/1) ... [2022-03-17 15:10:59,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 03:10:59 BasicIcfg [2022-03-17 15:10:59,501 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 15:10:59,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 15:10:59,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 15:10:59,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 15:10:59,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:10:58" (1/4) ... [2022-03-17 15:10:59,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adcb47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:10:59, skipping insertion in model container [2022-03-17 15:10:59,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:10:58" (2/4) ... [2022-03-17 15:10:59,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adcb47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:10:59, skipping insertion in model container [2022-03-17 15:10:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:10:59" (3/4) ... [2022-03-17 15:10:59,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adcb47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:10:59, skipping insertion in model container [2022-03-17 15:10:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 03:10:59" (4/4) ... [2022-03-17 15:10:59,507 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.cJordan [2022-03-17 15:10:59,512 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 15:10:59,512 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 15:10:59,541 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 15:10:59,546 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 15:10:59,546 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 15:10:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-03-17 15:10:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-17 15:10:59,566 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 15:10:59,567 INFO L500 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] [2022-03-17 15:10:59,567 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 15:10:59,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 15:10:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1557733986, now seen corresponding path program 1 times [2022-03-17 15:10:59,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 15:10:59,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434584441] [2022-03-17 15:10:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:10:59,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 15:10:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:10:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 15:10:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:10:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 15:10:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:10:59,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-03-17 15:10:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:10:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 15:10:59,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 15:10:59,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434584441] [2022-03-17 15:10:59,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434584441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 15:10:59,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 15:10:59,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 15:10:59,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364957531] [2022-03-17 15:10:59,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 15:10:59,947 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 15:10:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 15:10:59,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 15:10:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 15:10:59,973 INFO L87 Difference]: Start difference. First operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-17 15:11:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 15:11:00,406 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2022-03-17 15:11:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 15:11:00,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-03-17 15:11:00,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 15:11:00,419 INFO L225 Difference]: With dead ends: 130 [2022-03-17 15:11:00,419 INFO L226 Difference]: Without dead ends: 119 [2022-03-17 15:11:00,421 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 15:11:00,424 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 238 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 15:11:00,426 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 15:11:00,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-03-17 15:11:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-03-17 15:11:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 95 states have internal predecessors, (137), 16 states have call successors, (16), 11 states have call predecessors, (16), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-03-17 15:11:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2022-03-17 15:11:00,461 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2022-03-17 15:11:00,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 15:11:00,461 INFO L478 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2022-03-17 15:11:00,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-17 15:11:00,462 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2022-03-17 15:11:00,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-17 15:11:00,464 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 15:11:00,464 INFO L500 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] [2022-03-17 15:11:00,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 15:11:00,464 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 15:11:00,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 15:11:00,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1372227393, now seen corresponding path program 1 times [2022-03-17 15:11:00,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 15:11:00,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479276382] [2022-03-17 15:11:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:11:00,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 15:11:00,507 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-17 15:11:00,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076238124] [2022-03-17 15:11:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:11:00,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 15:11:00,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 15:11:00,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 15:11:00,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 15:11:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:11:00,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 15:11:00,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 15:11:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 15:11:00,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 15:11:00,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 15:11:00,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479276382] [2022-03-17 15:11:00,759 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-17 15:11:00,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076238124] [2022-03-17 15:11:00,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076238124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 15:11:00,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 15:11:00,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 15:11:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945043349] [2022-03-17 15:11:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 15:11:00,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 15:11:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 15:11:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 15:11:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 15:11:00,761 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 15:11:00,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 15:11:00,775 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2022-03-17 15:11:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 15:11:00,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-03-17 15:11:00,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 15:11:00,776 INFO L225 Difference]: With dead ends: 117 [2022-03-17 15:11:00,776 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 15:11:00,777 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 15:11:00,778 INFO L912 BasicCegarLoop]: 160 mSDtfsCounter, 5 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 15:11:00,778 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 477 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 15:11:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 15:11:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 15:11:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-17 15:11:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 15:11:00,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-03-17 15:11:00,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 15:11:00,779 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 15:11:00,779 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 15:11:00,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 15:11:00,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 15:11:00,781 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 15:11:00,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 15:11:01,003 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 15:11:01,006 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-17 15:11:01,007 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 15:11:01,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:11:01 BasicIcfg [2022-03-17 15:11:01,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 15:11:01,010 INFO L158 Benchmark]: Toolchain (without parser) took 2506.13ms. Allocated memory was 213.9MB in the beginning and 267.4MB in the end (delta: 53.5MB). Free memory was 164.7MB in the beginning and 155.7MB in the end (delta: 9.1MB). Peak memory consumption was 63.7MB. Max. memory is 8.0GB. [2022-03-17 15:11:01,010 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 213.9MB. Free memory was 182.1MB in the beginning and 181.9MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 15:11:01,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.82ms. Allocated memory is still 213.9MB. Free memory was 164.4MB in the beginning and 183.4MB in the end (delta: -19.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-17 15:11:01,011 INFO L158 Benchmark]: Boogie Preprocessor took 46.87ms. Allocated memory is still 213.9MB. Free memory was 183.4MB in the beginning and 179.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-17 15:11:01,011 INFO L158 Benchmark]: RCFGBuilder took 624.94ms. Allocated memory is still 213.9MB. Free memory was 179.8MB in the beginning and 149.8MB in the end (delta: 30.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-03-17 15:11:01,012 INFO L158 Benchmark]: IcfgTransformer took 46.41ms. Allocated memory is still 213.9MB. Free memory was 149.8MB in the beginning and 146.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-17 15:11:01,012 INFO L158 Benchmark]: TraceAbstraction took 1507.20ms. Allocated memory was 213.9MB in the beginning and 267.4MB in the end (delta: 53.5MB). Free memory was 146.3MB in the beginning and 155.7MB in the end (delta: -9.4MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2022-03-17 15:11:01,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 213.9MB. Free memory was 182.1MB in the beginning and 181.9MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 275.82ms. Allocated memory is still 213.9MB. Free memory was 164.4MB in the beginning and 183.4MB in the end (delta: -19.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.87ms. Allocated memory is still 213.9MB. Free memory was 183.4MB in the beginning and 179.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 624.94ms. Allocated memory is still 213.9MB. Free memory was 179.8MB in the beginning and 149.8MB in the end (delta: 30.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * IcfgTransformer took 46.41ms. Allocated memory is still 213.9MB. Free memory was 149.8MB in the beginning and 146.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1507.20ms. Allocated memory was 213.9MB in the beginning and 267.4MB in the end (delta: 53.5MB). Free memory was 146.3MB in the beginning and 155.7MB in the end (delta: -9.4MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 615 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 293 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 1 NumberOfNonLiveVariables, 546 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-17 15:11:01,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...