./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6332124c2c0887b4532bb51389233d66d442c8a9 ............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:38:33,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:38:33,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:38:33,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:38:33,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:38:33,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:38:33,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:38:33,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:38:33,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:38:33,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:38:33,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:38:33,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:38:33,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:38:33,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:38:33,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:38:33,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:38:33,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:38:33,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:38:33,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:38:33,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:38:33,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:38:33,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:38:33,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:38:33,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:38:33,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:38:33,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:38:33,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:38:33,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:38:33,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:38:33,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:38:33,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:38:33,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:38:33,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:38:33,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:38:33,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:38:33,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:38:33,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:38:33,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:38:33,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:38:33,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:38:33,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:38:33,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-13 04:38:33,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:38:33,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:38:33,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:38:33,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:38:33,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:38:33,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:38:33,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:38:33,148 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 04:38:33,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:38:33,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 04:38:33,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:38:33,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:38:33,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:38:33,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:38:33,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 04:38:33,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:38:33,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:38:33,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:38:33,153 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:38:33,153 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:38:33,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:38:33,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:38:33,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:38:33,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:38:33,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:38:33,155 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:38:33,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:38:33,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:38:33,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6332124c2c0887b4532bb51389233d66d442c8a9 [2021-10-13 04:38:33,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:38:33,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:38:33,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:38:33,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:38:33,511 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:38:33,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2021-10-13 04:38:33,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/data/c43d5992e/26cdb8c30a724f23abd6fc16fc20abbb/FLAGc539afb78 [2021-10-13 04:38:34,010 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:38:34,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2021-10-13 04:38:34,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/data/c43d5992e/26cdb8c30a724f23abd6fc16fc20abbb/FLAGc539afb78 [2021-10-13 04:38:34,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/data/c43d5992e/26cdb8c30a724f23abd6fc16fc20abbb [2021-10-13 04:38:34,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:38:34,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:38:34,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:38:34,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:38:34,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:38:34,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243c5cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34, skipping insertion in model container [2021-10-13 04:38:34,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:38:34,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:38:34,665 WARN L228 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_03f7cfcc-1389-4220-8109-ce902188f42d/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2021-10-13 04:38:34,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:38:34,691 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:38:34,703 WARN L228 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_03f7cfcc-1389-4220-8109-ce902188f42d/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2021-10-13 04:38:34,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:38:34,721 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:38:34,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34 WrapperNode [2021-10-13 04:38:34,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:38:34,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:38:34,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:38:34,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:38:34,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:38:34,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:38:34,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:38:34,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:38:34,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:38:34,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:38:34,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:38:34,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:38:34,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:34" (1/1) ... [2021-10-13 04:38:34,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:38:34,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:38:34,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:38:34,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:38:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-10-13 04:38:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-10-13 04:38:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 04:38:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 04:38:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 04:38:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-10-13 04:38:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-10-13 04:38:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:38:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:38:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 04:38:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 04:38:35,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:38:35,185 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 04:38:35,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:35 BoogieIcfgContainer [2021-10-13 04:38:35,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:38:35,188 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:38:35,189 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:38:35,202 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:38:35,203 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:35" (1/1) ... [2021-10-13 04:38:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:38:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:38:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2021-10-13 04:38:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-10-13 04:38:35,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:38:35,281 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:38:35,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:38:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:38:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:38:35,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:38:35,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2021-10-13 04:38:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-13 04:38:35,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 04:38:35,633 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:38:35,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:38:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:38:35,667 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:38:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:38:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:38:35,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:38:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:38:35,761 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-13 04:38:35,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:38:35 ImpRootNode [2021-10-13 04:38:35,789 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:38:35,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:38:35,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:38:35,790 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:38:35,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:35" (3/4) ... [2021-10-13 04:38:35,793 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:38:35,864 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:38:35,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:38:35,866 INFO L168 Benchmark]: Toolchain (without parser) took 1444.68 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.0 MB in the beginning and 82.9 MB in the end (delta: -30.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:38:35,867 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:38:35,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.36 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 51.8 MB in the beginning and 87.4 MB in the end (delta: -35.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-13 04:38:35,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.54 ms. Allocated memory is still 111.1 MB. Free memory was 87.4 MB in the beginning and 86.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:38:35,872 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 85.3 MB in the end (delta: 688.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:38:35,872 INFO L168 Benchmark]: RCFGBuilder took 403.82 ms. Allocated memory is still 111.1 MB. Free memory was 85.0 MB in the beginning and 74.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 04:38:35,873 INFO L168 Benchmark]: CodeCheck took 601.02 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 84.8 MB in the end (delta: -10.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:38:35,876 INFO L168 Benchmark]: Witness Printer took 74.11 ms. Allocated memory is still 111.1 MB. Free memory was 84.8 MB in the beginning and 82.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:38:35,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 520.5ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 21.6ms SsaConstructionTime, 68.2ms SatisfiabilityAnalysisTime, 144.0ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L35] struct mutex m; [L36] m.is_locked = 0 [L38] CALL mutex_lock(&m) VAL [a={8370:0}] [L23] EXPR a->is_locked VAL [a={8370:0}, a={8370:0}, a->is_locked=0] [L23] COND FALSE !(a->is_locked == 1) [L24] a->is_locked = 1 [L38] RET mutex_lock(&m) [L42] CALL mutex_lock(&m) VAL [a={8370:0}] [L23] EXPR a->is_locked VAL [a={8370:0}, a={8370:0}, a->is_locked=1] [L23] COND TRUE a->is_locked == 1 [L23] CALL err() [L15] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.36 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 51.8 MB in the beginning and 87.4 MB in the end (delta: -35.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.54 ms. Allocated memory is still 111.1 MB. Free memory was 87.4 MB in the beginning and 86.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 85.3 MB in the end (delta: 688.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 403.82 ms. Allocated memory is still 111.1 MB. Free memory was 85.0 MB in the beginning and 74.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 601.02 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 84.8 MB in the end (delta: -10.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 74.11 ms. Allocated memory is still 111.1 MB. Free memory was 84.8 MB in the beginning and 82.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:38:35,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03f7cfcc-1389-4220-8109-ce902188f42d/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...