./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 16:18:47,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:18:47,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:18:47,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:18:47,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:18:47,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:18:47,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:18:47,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:18:47,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:18:47,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:18:47,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:18:47,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:18:47,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:18:47,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:18:47,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:18:47,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:18:47,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:18:47,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:18:47,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:18:47,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:18:47,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:18:47,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:18:47,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:18:47,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:18:47,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:18:47,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:18:47,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:18:47,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:18:47,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:18:47,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:18:47,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:18:47,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:18:47,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:18:47,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:18:47,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:18:47,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:18:47,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:18:47,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:18:47,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:18:47,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:18:47,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:18:47,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-20 16:18:47,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:18:47,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:18:47,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 16:18:47,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 16:18:47,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:18:47,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 16:18:47,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:18:47,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:18:47,829 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 16:18:47,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:18:47,830 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 16:18:47,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:18:47,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 16:18:47,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:18:47,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:18:47,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:18:47,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:18:47,831 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 16:18:47,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:18:47,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:18:47,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:18:47,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:18:47,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 16:18:47,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 16:18:47,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 16:18:47,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:18:47,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:18:47,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:18:47,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 16:18:47,834 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-20 16:18:47,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:18:47,834 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 16:18:47,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-20 16:18:47,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:18:47,835 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-20 16:18:47,835 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-20 16:18:47,835 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_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-11-20 16:18:48,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:18:48,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:18:48,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:18:48,144 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:18:48,144 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:18:48,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/../../sv-benchmarks/c/pthread/singleton.i [2022-11-20 16:18:51,206 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:18:51,524 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:18:51,525 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/sv-benchmarks/c/pthread/singleton.i [2022-11-20 16:18:51,539 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/data/967b3c7d9/f3f05b5888584a279a26184bfcb70ba1/FLAG9a9e4ab40 [2022-11-20 16:18:51,558 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/data/967b3c7d9/f3f05b5888584a279a26184bfcb70ba1 [2022-11-20 16:18:51,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:18:51,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:18:51,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:18:51,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:18:51,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:18:51,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:18:51" (1/1) ... [2022-11-20 16:18:51,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcd1895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:51, skipping insertion in model container [2022-11-20 16:18:51,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:18:51" (1/1) ... [2022-11-20 16:18:51,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:18:51,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:18:51,875 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:18:52,274 WARN L237 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_f2803140-e430-4459-b791-9faee2d9a5f6/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-20 16:18:52,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:18:52,319 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:18:52,346 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:18:52,370 WARN L237 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_f2803140-e430-4459-b791-9faee2d9a5f6/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-20 16:18:52,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:18:52,471 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:18:52,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52 WrapperNode [2022-11-20 16:18:52,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:18:52,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:18:52,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:18:52,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:18:52,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,519 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-20 16:18:52,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:18:52,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:18:52,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:18:52,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:18:52,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,564 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:18:52,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:18:52,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:18:52,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:18:52,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (1/1) ... [2022-11-20 16:18:52,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 16:18:52,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:52,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 16:18:52,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 16:18:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 16:18:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:18:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:18:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 16:18:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:18:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-20 16:18:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-20 16:18:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 16:18:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 16:18:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 16:18:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 16:18:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 16:18:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 16:18:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:18:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 16:18:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:18:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:18:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:18:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:18:52,658 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 16:18:52,798 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:18:52,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:18:53,076 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:18:53,083 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:18:53,084 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 16:18:53,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:18:53 BoogieIcfgContainer [2022-11-20 16:18:53,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:18:53,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 16:18:53,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 16:18:53,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 16:18:53,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:18:51" (1/3) ... [2022-11-20 16:18:53,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfe3b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:18:53, skipping insertion in model container [2022-11-20 16:18:53,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:18:52" (2/3) ... [2022-11-20 16:18:53,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfe3b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:18:53, skipping insertion in model container [2022-11-20 16:18:53,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:18:53" (3/3) ... [2022-11-20 16:18:53,097 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-11-20 16:18:53,107 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 16:18:53,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 16:18:53,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 16:18:53,135 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 16:18:53,408 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-20 16:18:53,455 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:53,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:18:53,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:53,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:18:53,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-20 16:18:53,536 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:18:53,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:18:53,558 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ccc0a3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:53,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 16:18:54,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 16:18:54,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1519503528, now seen corresponding path program 1 times [2022-11-20 16:18:54,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:54,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4279998] [2022-11-20 16:18:54,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:54,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:54,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:18:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:54,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:18:54,830 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:18:54,831 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 16:18:54,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-20 16:18:54,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 16:18:54,841 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 16:18:54,843 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/2) [2022-11-20 16:18:54,847 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 16:18:54,848 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 16:18:55,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:18:55 BasicIcfg [2022-11-20 16:18:55,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 16:18:55,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:18:55,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:18:55,019 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:18:55,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:18:53" (3/4) ... [2022-11-20 16:18:55,021 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 16:18:55,173 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/witness.graphml [2022-11-20 16:18:55,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:18:55,174 INFO L158 Benchmark]: Toolchain (without parser) took 3611.12ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 64.8MB in the end (delta: 83.4MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,175 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:18:55,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 905.35ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 115.3MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.92ms. Allocated memory is still 195.0MB. Free memory was 115.3MB in the beginning and 112.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,176 INFO L158 Benchmark]: Boogie Preprocessor took 49.41ms. Allocated memory is still 195.0MB. Free memory was 112.6MB in the beginning and 111.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,176 INFO L158 Benchmark]: RCFGBuilder took 517.28ms. Allocated memory is still 195.0MB. Free memory was 111.1MB in the beginning and 161.4MB in the end (delta: -50.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,177 INFO L158 Benchmark]: TraceAbstraction took 1928.90ms. Allocated memory is still 195.0MB. Free memory was 160.4MB in the beginning and 107.8MB in the end (delta: 52.6MB). Peak memory consumption was 107.1MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,177 INFO L158 Benchmark]: Witness Printer took 155.22ms. Allocated memory is still 195.0MB. Free memory was 107.8MB in the beginning and 64.8MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-20 16:18:55,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 905.35ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 115.3MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.92ms. Allocated memory is still 195.0MB. Free memory was 115.3MB in the beginning and 112.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.41ms. Allocated memory is still 195.0MB. Free memory was 112.6MB in the beginning and 111.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.28ms. Allocated memory is still 195.0MB. Free memory was 111.1MB in the beginning and 161.4MB in the end (delta: -50.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1928.90ms. Allocated memory is still 195.0MB. Free memory was 160.4MB in the beginning and 107.8MB in the end (delta: 52.6MB). Peak memory consumption was 107.1MB. Max. memory is 16.1GB. * Witness Printer took 155.22ms. Allocated memory is still 195.0MB. Free memory was 107.8MB in the beginning and 64.8MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5958, independent: 5871, independent conditional: 328, independent unconditional: 5543, dependent: 87, dependent conditional: 5, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 328, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 328, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 0, independent unconditional: 5871, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 0, independent unconditional: 5871, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 0, independent unconditional: 5871, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5625, independent: 5543, independent conditional: 0, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5625, independent: 5528, independent conditional: 0, independent unconditional: 5528, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 97, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 343, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5953, independent: 328, independent conditional: 0, independent unconditional: 328, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5625, unknown conditional: 0, unknown unconditional: 5625] , Statistics on independence cache: Total cache size (in pairs): 5625, Positive cache size: 5543, Positive conditional cache size: 0, Positive unconditional cache size: 5543, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 5 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.5s, Number of persistent set computation: 115, Number of trivial persistent sets: 89, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5625, independent: 5543, independent conditional: 0, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5958, independent: 5871, independent conditional: 328, independent unconditional: 5543, dependent: 87, dependent conditional: 5, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 328, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 328, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 0, independent unconditional: 5871, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 0, independent unconditional: 5871, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5953, independent: 5871, independent conditional: 0, independent unconditional: 5871, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5625, independent: 5543, independent conditional: 0, independent unconditional: 5543, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5625, independent: 5528, independent conditional: 0, independent unconditional: 5528, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 97, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 343, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5953, independent: 328, independent conditional: 0, independent unconditional: 328, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5625, unknown conditional: 0, unknown unconditional: 5625] , Statistics on independence cache: Total cache size (in pairs): 5625, Positive cache size: 5543, Positive conditional cache size: 0, Positive unconditional cache size: 5543, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 5 - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; VAL [v={0:0}] [L1161] 0 pthread_t t; VAL [t={6:0}, v={0:0}] [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, pthread_create(&t, 0, thread0, 0)=-6, t={6:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; VAL [arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={0:0}] [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=-5, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=-5, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) VAL [\read(t1)=-5, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1128] 2 return 0; VAL [\read(t1)=-5, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-5, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t2, 0, thread2, 0)=-4, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t3, 0, thread3, 0)=-3, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t4, 0, thread2, 0)=-2, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t5, 0, thread2, 0)=-1, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1153] 1 \read(t2) VAL [\read(t2)=-4, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1133] 3 v[0] = 'X' VAL [\read(t2)=-4, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1135] 3 return 0; VAL [\read(t2)=-4, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-4, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1133] 6 v[0] = 'X' VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1135] 6 return 0; VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1133] 5 v[0] = 'X' VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1135] 5 return 0; VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1140] 4 v[0] = 'Y' VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1142] 4 return 0; VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-1, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-1, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t2={8:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t3={9:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t4={10:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, v={3:0}] [L1163] 0 \read(t) VAL [\read(t)=-6, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\read(t)=-6, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1164] EXPR 0 v[0] VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}, v[0]=89] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={3:0}] [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={3:0}] - UnprovableResult [Line: 1162]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 224 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-20 16:18:55,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 16:18:55,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2803140-e430-4459-b791-9faee2d9a5f6/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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