./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:36:36,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:36:36,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:36:36,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:36:36,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:36:36,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:36:36,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:36:36,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:36:36,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:36:36,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:36:36,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:36:36,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:36:36,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:36:36,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:36:36,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:36:36,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:36:36,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:36:36,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:36:36,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:36:36,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:36:36,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:36:36,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:36:36,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:36:36,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:36:36,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:36:36,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:36:36,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:36:36,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:36:36,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:36:36,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:36:36,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:36:36,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:36:36,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:36:36,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:36:36,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:36:36,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:36:36,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:36:36,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:36:36,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:36:36,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:36:36,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:36:36,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 05:36:36,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:36:36,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:36:36,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:36:36,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:36:36,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:36:36,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:36:36,820 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:36:36,820 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:36:36,821 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:36:36,821 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:36:36,821 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:36:36,822 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:36:36,822 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:36:36,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:36:36,823 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:36:36,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:36:36,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:36:36,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:36:36,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:36:36,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:36:36,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:36:36,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:36:36,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:36:36,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:36:36,828 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:36:36,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:36:36,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:36:36,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:36:36,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:36:36,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:36:36,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:36:36,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:36:36,832 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:36:36,832 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2021-11-20 05:36:37,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:36:37,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:36:37,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:36:37,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:36:37,229 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:36:37,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2021-11-20 05:36:37,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/data/262187140/45079bc3bbab42b580c0ca525cf12488/FLAGba05738b6 [2021-11-20 05:36:37,902 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:36:37,903 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/sv-benchmarks/c/ldv-regression/stateful_check.c [2021-11-20 05:36:37,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/data/262187140/45079bc3bbab42b580c0ca525cf12488/FLAGba05738b6 [2021-11-20 05:36:38,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/data/262187140/45079bc3bbab42b580c0ca525cf12488 [2021-11-20 05:36:38,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:36:38,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:36:38,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:38,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:36:38,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:36:38,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142c5ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38, skipping insertion in model container [2021-11-20 05:36:38,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:36:38,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:36:38,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-11-20 05:36:38,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:38,572 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:36:38,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-11-20 05:36:38,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:38,656 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:36:38,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38 WrapperNode [2021-11-20 05:36:38,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:38,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:38,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:36:38,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:36:38,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,719 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 116 [2021-11-20 05:36:38,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:38,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:36:38,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:36:38,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:36:38,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:36:38,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:36:38,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:36:38,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:36:38,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2021-11-20 05:36:38,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:38,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:38,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:38,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:36:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:36:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:36:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:36:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:36:38,973 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:36:38,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:36:39,192 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:36:39,200 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:36:39,200 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:36:39,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:39 BoogieIcfgContainer [2021-11-20 05:36:39,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:36:39,204 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:36:39,204 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:36:39,209 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:36:39,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:36:39,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:36:38" (1/3) ... [2021-11-20 05:36:39,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e5ab0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:36:39, skipping insertion in model container [2021-11-20 05:36:39,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:36:39,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (2/3) ... [2021-11-20 05:36:39,213 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e5ab0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:36:39, skipping insertion in model container [2021-11-20 05:36:39,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:36:39,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:39" (3/3) ... [2021-11-20 05:36:39,215 INFO L388 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2021-11-20 05:36:39,273 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:36:39,273 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:36:39,274 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:36:39,274 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:36:39,274 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:36:39,274 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:36:39,274 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:36:39,274 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:36:39,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 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) [2021-11-20 05:36:39,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 05:36:39,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:39,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:39,334 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:36:39,334 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:36:39,335 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:36:39,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 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) [2021-11-20 05:36:39,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 05:36:39,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:39,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:39,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:36:39,346 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:36:39,354 INFO L791 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_#t~nondet6#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 50#L72true main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 36#L78-2true [2021-11-20 05:36:39,355 INFO L793 eck$LassoCheckResult]: Loop: 36#L78-2true assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1; 17#L82true assume main_#t~switch8#1; 18#L83true assume !(0 == main_~ldv_s_misc_fops_file_operations~0#1); 12#L80true havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 36#L78-2true [2021-11-20 05:36:39,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:39,363 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-20 05:36:39,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:39,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146065594] [2021-11-20 05:36:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:39,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:39,480 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:39,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:39,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:39,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1327184, now seen corresponding path program 1 times [2021-11-20 05:36:39,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:39,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758722085] [2021-11-20 05:36:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:39,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:39,535 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:39,545 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:39,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1804166384, now seen corresponding path program 1 times [2021-11-20 05:36:39,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:39,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808369337] [2021-11-20 05:36:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:39,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:39,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:39,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808369337] [2021-11-20 05:36:39,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808369337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:39,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:39,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:39,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505721395] [2021-11-20 05:36:39,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:39,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:39,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:39,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:39,818 INFO L87 Difference]: Start difference. First operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-20 05:36:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:39,877 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2021-11-20 05:36:39,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:39,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 78 transitions. [2021-11-20 05:36:39,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2021-11-20 05:36:39,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 44 states and 60 transitions. [2021-11-20 05:36:39,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-11-20 05:36:39,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-11-20 05:36:39,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 60 transitions. [2021-11-20 05:36:39,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:36:39,927 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-20 05:36:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 60 transitions. [2021-11-20 05:36:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-20 05:36:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 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) [2021-11-20 05:36:39,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-11-20 05:36:39,982 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-20 05:36:39,983 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-20 05:36:39,983 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:36:39,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 60 transitions. [2021-11-20 05:36:39,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2021-11-20 05:36:39,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:39,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:39,992 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:36:39,993 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-20 05:36:39,993 INFO L791 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_#t~nondet6#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 138#L72 main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 142#L78-2 [2021-11-20 05:36:39,993 INFO L793 eck$LassoCheckResult]: Loop: 142#L78-2 assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1; 145#L82 assume !main_#t~switch8#1;main_#t~switch8#1 := main_#t~switch8#1 || 1 == main_#t~nondet7#1; 151#L90 assume main_#t~switch8#1; 152#L91 assume !(1 == main_~ldv_s_misc_fops_file_operations~0#1); 139#L80 havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 142#L78-2 [2021-11-20 05:36:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:39,997 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2021-11-20 05:36:39,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:40,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916539252] [2021-11-20 05:36:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:40,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:40,029 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:40,055 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:40,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash 41592526, now seen corresponding path program 1 times [2021-11-20 05:36:40,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:40,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322627253] [2021-11-20 05:36:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:40,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:40,076 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:40,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:40,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:40,102 INFO L85 PathProgramCache]: Analyzing trace with hash 95032878, now seen corresponding path program 1 times [2021-11-20 05:36:40,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:40,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084647522] [2021-11-20 05:36:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:40,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:40,134 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:40,162 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:40,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:36:40 BoogieIcfgContainer [2021-11-20 05:36:40,506 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:36:40,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:36:40,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:36:40,512 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:36:40,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:39" (3/4) ... [2021-11-20 05:36:40,520 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 05:36:40,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:36:40,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:36:40,586 INFO L158 Benchmark]: Toolchain (without parser) took 2351.95ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 51.7MB in the beginning and 69.3MB in the end (delta: -17.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,586 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 88.1MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:36:40,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.29ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 51.5MB in the beginning and 94.0MB in the end (delta: -42.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.27ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 92.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,594 INFO L158 Benchmark]: Boogie Preprocessor took 55.20ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 91.3MB in the end (delta: 999.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,595 INFO L158 Benchmark]: RCFGBuilder took 426.06ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,596 INFO L158 Benchmark]: BuchiAutomizer took 1301.52ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 71.4MB in the end (delta: 9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,597 INFO L158 Benchmark]: Witness Printer took 72.67ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:36:40,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 88.1MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.29ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 51.5MB in the beginning and 94.0MB in the end (delta: -42.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.27ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 92.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.20ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 91.3MB in the end (delta: 999.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.06ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1301.52ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 71.4MB in the end (delta: 9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 72.67ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 44 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 44 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 50 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 78]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f72bc5d=4, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@250713ed=1, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ddd4a97=0, \result=0, ldv_mutex=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f70131f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@691f3cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@267df18d=0, NULL=0, ldv_s_misc_fops_file_operations=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@72cc722=0, open_called=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7173d1be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fb42e21=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71dcdbb4=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 78]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] int ldv_mutex = 1; [L13] int open_called = 0; [L76] int ldv_s_misc_fops_file_operations = 0; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; [L77] RET my_init() Loop: [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: [L91] COND FALSE !(ldv_s_misc_fops_file_operations==1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 05:36:40,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97f028-78be-449d-b0cc-95290e2d6131/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)