/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-b030c9e [2022-03-20 03:52:08,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:52:08,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:52:08,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 03:52:08,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 03:52:08,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 03:52:08,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 03:52:08,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 03:52:08,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 03:52:08,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 03:52:08,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 03:52:08,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 03:52:08,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:52:08,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:52:08,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:52:08,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:52:08,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:52:08,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:52:08,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:52:08,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:52:08,734 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:52:08,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:52:08,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:52:08,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:52:08,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:52:08,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 03:52:08,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 03:52:08,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 03:52:08,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 03:52:08,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 03:52:08,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 03:52:08,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 03:52:08,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 03:52:08,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 03:52:08,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:52:08,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:52:08,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:52:08,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 03:52:08,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:52:08,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:52:08,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:52:08,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:52:08,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:52:08,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:52:08,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:52:08,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:52:08,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:52:08,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:52:08,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:52:08,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:52:08,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:52:08,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:52:08,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:52:08,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:52:08,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 03:52:08,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:52:08,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:52:08,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:52:08,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:52:08,770 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 03:52:08,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:52:08,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:52:09,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:52:09,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:52:09,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:52:09,026 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:52:09,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2022-03-20 03:52:09,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a70fb2d4/ed03f68aca6245f0ba83650603513ee5/FLAG5be51b26a [2022-03-20 03:52:09,501 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:52:09,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2022-03-20 03:52:09,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a70fb2d4/ed03f68aca6245f0ba83650603513ee5/FLAG5be51b26a [2022-03-20 03:52:09,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a70fb2d4/ed03f68aca6245f0ba83650603513ee5 [2022-03-20 03:52:09,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:52:09,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 03:52:09,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:52:09,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:52:09,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:52:09,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a27f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09, skipping insertion in model container [2022-03-20 03:52:09,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:52:09,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:52:09,807 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] [2022-03-20 03:52:09,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:52:09,816 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:52:09,875 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] [2022-03-20 03:52:09,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:52:09,895 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:52:09,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09 WrapperNode [2022-03-20 03:52:09,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:52:09,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:52:09,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:52:09,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:52:09,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:09,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:52:09,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:52:09,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:52:09,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:52:09,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (1/1) ... [2022-03-20 03:52:10,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:52:10,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:52:10,044 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) [2022-03-20 03:52:10,059 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 [2022-03-20 03:52:10,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:52:10,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:52:10,096 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:52:10,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2022-03-20 03:52:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2022-03-20 03:52:10,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2022-03-20 03:52:10,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:52:10,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 03:52:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:52:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:52:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2022-03-20 03:52:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:52:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:52:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 03:52:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 03:52:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:52:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-20 03:52:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:52:10,253 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:52:10,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:52:10,708 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:52:10,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:52:10,715 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-03-20 03:52:10,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:52:10 BoogieIcfgContainer [2022-03-20 03:52:10,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:52:10,717 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 03:52:10,718 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 03:52:10,722 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 03:52:10,725 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:52:10" (1/1) ... [2022-03-20 03:52:10,727 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 03:52:10,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:52:10 BasicIcfg [2022-03-20 03:52:10,772 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 03:52:10,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:52:10,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:52:10,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:52:10,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:52:09" (1/4) ... [2022-03-20 03:52:10,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aecee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:52:10, skipping insertion in model container [2022-03-20 03:52:10,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:52:09" (2/4) ... [2022-03-20 03:52:10,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aecee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:52:10, skipping insertion in model container [2022-03-20 03:52:10,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:52:10" (3/4) ... [2022-03-20 03:52:10,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aecee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:52:10, skipping insertion in model container [2022-03-20 03:52:10,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:52:10" (4/4) ... [2022-03-20 03:52:10,779 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.cJordan [2022-03-20 03:52:10,783 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:52:10,783 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:52:10,820 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:52:10,825 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 [2022-03-20 03:52:10,826 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:52:10,838 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) [2022-03-20 03:52:10,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-20 03:52:10,848 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:52:10,849 INFO L499 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] [2022-03-20 03:52:10,850 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:52:10,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:52:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1557733986, now seen corresponding path program 1 times [2022-03-20 03:52:10,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:52:10,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700029635] [2022-03-20 03:52:10,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:52:10,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:52:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:52:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:52:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:52:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 03:52:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:52:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-03-20 03:52:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:52:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:52:11,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:52:11,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700029635] [2022-03-20 03:52:11,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700029635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:52:11,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:52:11,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:52:11,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611427738] [2022-03-20 03:52:11,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:52:11,255 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:52:11,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:52:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:52:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:52:11,278 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) [2022-03-20 03:52:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:52:11,707 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2022-03-20 03:52:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:52:11,709 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 [2022-03-20 03:52:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:52:11,723 INFO L225 Difference]: With dead ends: 130 [2022-03-20 03:52:11,724 INFO L226 Difference]: Without dead ends: 119 [2022-03-20 03:52:11,725 INFO L912 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 [2022-03-20 03:52:11,730 INFO L913 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 [2022-03-20 03:52:11,735 INFO L914 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] [2022-03-20 03:52:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-03-20 03:52:11,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-03-20 03:52:11,778 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) [2022-03-20 03:52:11,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2022-03-20 03:52:11,783 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2022-03-20 03:52:11,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:52:11,783 INFO L478 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2022-03-20 03:52:11,783 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) [2022-03-20 03:52:11,783 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2022-03-20 03:52:11,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-20 03:52:11,786 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:52:11,786 INFO L499 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] [2022-03-20 03:52:11,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:52:11,786 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:52:11,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:52:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1372227393, now seen corresponding path program 1 times [2022-03-20 03:52:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:52:11,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274950538] [2022-03-20 03:52:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:52:11,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:52:11,833 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 03:52:11,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702638795] [2022-03-20 03:52:11,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:52:11,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:52:11,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:52:11,835 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) [2022-03-20 03:52:11,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:52:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:52:12,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-20 03:52:12,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:52:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:52:12,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 03:52:12,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:52:12,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274950538] [2022-03-20 03:52:12,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-20 03:52:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702638795] [2022-03-20 03:52:12,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702638795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:52:12,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:52:12,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:52:12,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155614765] [2022-03-20 03:52:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:52:12,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:52:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:52:12,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:52:12,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:52:12,190 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) [2022-03-20 03:52:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:52:12,225 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2022-03-20 03:52:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:52:12,227 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 [2022-03-20 03:52:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:52:12,228 INFO L225 Difference]: With dead ends: 117 [2022-03-20 03:52:12,228 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 03:52:12,228 INFO L912 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 [2022-03-20 03:52:12,229 INFO L913 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 [2022-03-20 03:52:12,230 INFO L914 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] [2022-03-20 03:52:12,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 03:52:12,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 03:52:12,230 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) [2022-03-20 03:52:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 03:52:12,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-03-20 03:52:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:52:12,231 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 03:52:12,231 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) [2022-03-20 03:52:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 03:52:12,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 03:52:12,233 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 03:52:12,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 03:52:12,458 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 [2022-03-20 03:52:12,460 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 03:52:12,461 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 03:52:12,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:52:12 BasicIcfg [2022-03-20 03:52:12,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 03:52:12,467 INFO L158 Benchmark]: Toolchain (without parser) took 2940.38ms. Allocated memory was 182.5MB in the beginning and 245.4MB in the end (delta: 62.9MB). Free memory was 124.3MB in the beginning and 155.9MB in the end (delta: -31.5MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. [2022-03-20 03:52:12,467 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 03:52:12,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.01ms. Allocated memory was 182.5MB in the beginning and 245.4MB in the end (delta: 62.9MB). Free memory was 124.1MB in the beginning and 207.9MB in the end (delta: -83.8MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-03-20 03:52:12,468 INFO L158 Benchmark]: Boogie Preprocessor took 90.82ms. Allocated memory is still 245.4MB. Free memory was 207.9MB in the beginning and 204.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-20 03:52:12,468 INFO L158 Benchmark]: RCFGBuilder took 729.27ms. Allocated memory is still 245.4MB. Free memory was 204.2MB in the beginning and 173.3MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-03-20 03:52:12,468 INFO L158 Benchmark]: IcfgTransformer took 54.74ms. Allocated memory is still 245.4MB. Free memory was 173.3MB in the beginning and 169.6MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-20 03:52:12,469 INFO L158 Benchmark]: TraceAbstraction took 1692.62ms. Allocated memory is still 245.4MB. Free memory was 169.1MB in the beginning and 155.9MB in the end (delta: 13.2MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-03-20 03:52:12,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.01ms. Allocated memory was 182.5MB in the beginning and 245.4MB in the end (delta: 62.9MB). Free memory was 124.1MB in the beginning and 207.9MB in the end (delta: -83.8MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.82ms. Allocated memory is still 245.4MB. Free memory was 207.9MB in the beginning and 204.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 729.27ms. Allocated memory is still 245.4MB. Free memory was 204.2MB in the beginning and 173.3MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * IcfgTransformer took 54.74ms. Allocated memory is still 245.4MB. Free memory was 173.3MB in the beginning and 169.6MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1692.62ms. Allocated memory is still 245.4MB. Free memory was 169.1MB in the beginning and 155.9MB in the end (delta: 13.2MB). Peak memory consumption was 14.3MB. 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: 1.6s, 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, 0.4s 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! [2022-03-20 03:52:12,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...