./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH --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 c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 --- 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-38b53e6 [2022-11-25 18:43:34,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:43:34,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:43:34,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:43:34,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:43:34,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:43:34,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:43:34,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:43:34,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:43:34,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:43:34,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:43:34,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:43:34,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:43:34,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:43:34,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:43:34,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:43:34,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:43:34,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:43:34,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:43:34,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:43:34,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:43:34,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:43:34,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:43:34,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:43:34,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:43:34,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:43:34,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:43:34,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:43:34,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:43:34,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:43:34,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:43:34,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:43:34,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:43:34,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:43:34,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:43:34,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:43:34,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:43:34,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:43:34,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:43:34,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:43:34,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:43:34,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-25 18:43:34,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:43:34,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:43:34,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:43:34,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:43:34,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:43:34,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:43:34,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:43:34,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:43:34,861 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:43:34,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:43:34,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:43:34,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:43:34,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:43:34,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:43:34,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:43:34,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:43:34,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:43:34,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:43:34,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:43:34,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:43:34,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:43:34,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:43:34,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:43:34,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:43:34,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:43:34,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:43:34,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:43:34,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:43:34,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:43:34,867 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-25 18:43:34,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:43:34,867 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:43:34,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:43:34,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:43:34,868 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:43:34,868 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:43:34,869 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_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 [2022-11-25 18:43:35,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:43:35,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:43:35,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:43:35,229 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:43:35,229 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:43:35,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/pthread/reorder_5.i [2022-11-25 18:43:38,302 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:43:38,703 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:43:38,712 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/sv-benchmarks/c/pthread/reorder_5.i [2022-11-25 18:43:38,735 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/data/3342c8b34/b49363d23b174ee595f3a5d84b4a248b/FLAG6f831221e [2022-11-25 18:43:38,756 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/data/3342c8b34/b49363d23b174ee595f3a5d84b4a248b [2022-11-25 18:43:38,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:43:38,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:43:38,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:43:38,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:43:38,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:43:38,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:38" (1/1) ... [2022-11-25 18:43:38,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd707a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:38, skipping insertion in model container [2022-11-25 18:43:38,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:38" (1/1) ... [2022-11-25 18:43:38,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:43:38,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:43:39,624 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,633 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,640 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,645 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,647 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,651 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,652 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_4933fb1a-f05d-4f8c-be5c-318254e4bbea/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-25 18:43:39,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:43:39,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:43:39,712 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,716 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,718 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,719 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,721 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,724 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:43:39,724 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_4933fb1a-f05d-4f8c-be5c-318254e4bbea/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-25 18:43:39,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:43:39,818 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:43:39,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39 WrapperNode [2022-11-25 18:43:39,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:43:39,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:43:39,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:43:39,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:43:39,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,871 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2022-11-25 18:43:39,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:43:39,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:43:39,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:43:39,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:43:39,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:43:39,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:43:39,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:43:39,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:43:39,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (1/1) ... [2022-11-25 18:43:39,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:43:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:43:39,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:43:39,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:43:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:43:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:43:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:43:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-25 18:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-25 18:43:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:43:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:43:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-25 18:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-25 18:43:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:43:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:43:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:43:40,003 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:43:40,237 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:43:40,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:43:40,598 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:43:40,607 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:43:40,621 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 18:43:40,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:40 BoogieIcfgContainer [2022-11-25 18:43:40,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:43:40,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:43:40,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:43:40,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:43:40,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:43:38" (1/3) ... [2022-11-25 18:43:40,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adf9198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:43:40, skipping insertion in model container [2022-11-25 18:43:40,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:39" (2/3) ... [2022-11-25 18:43:40,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adf9198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:43:40, skipping insertion in model container [2022-11-25 18:43:40,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:40" (3/3) ... [2022-11-25 18:43:40,633 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-11-25 18:43:40,643 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:43:40,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:43:40,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:43:40,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:43:40,770 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 18:43:40,914 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:43:40,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:43:40,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:43:40,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:43:40,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-25 18:43:41,010 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:43:41,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2022-11-25 18:43:41,043 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;@48e6f39f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:43:41,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:43:41,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:43:41,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:41,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1537868307, now seen corresponding path program 1 times [2022-11-25 18:43:41,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:43:41,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363652437] [2022-11-25 18:43:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:43:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:43:41,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:43:41,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363652437] [2022-11-25 18:43:41,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363652437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:43:41,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:43:41,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:43:41,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376380272] [2022-11-25 18:43:41,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:43:41,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:43:41,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:43:41,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:43:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:43:41,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:41,569 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:43:41,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:43:41,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:41,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:43:41,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:43:41,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash 53532275, now seen corresponding path program 1 times [2022-11-25 18:43:41,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:43:41,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803429458] [2022-11-25 18:43:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:43:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:43:41,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:43:41,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803429458] [2022-11-25 18:43:41,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803429458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:43:41,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:43:41,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:43:41,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599987698] [2022-11-25 18:43:41,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:43:41,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:43:41,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:43:41,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:43:41,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:43:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:41,939 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:43:41,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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) [2022-11-25 18:43:41,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:41,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:43:42,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:43:42,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:43:42,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:42,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1096632015, now seen corresponding path program 1 times [2022-11-25 18:43:42,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:43:42,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552022687] [2022-11-25 18:43:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:42,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:43:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:43:42,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:43:42,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552022687] [2022-11-25 18:43:42,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552022687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:43:42,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:43:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:43:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916698454] [2022-11-25 18:43:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:43:42,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:43:42,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:43:42,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:43:42,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:43:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:42,207 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:43:42,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:43:42,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:42,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:43:42,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:43:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:43:42,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:43:42,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:43:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1619828695, now seen corresponding path program 1 times [2022-11-25 18:43:42,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:43:42,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840855398] [2022-11-25 18:43:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:42,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:43:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:43:42,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:43:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:43:42,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:43:42,684 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:43:42,685 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:43:42,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:43:42,694 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:43:42,695 INFO L307 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2022-11-25 18:43:42,699 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:43:42,699 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:43:42,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:43:42 BasicIcfg [2022-11-25 18:43:42,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:43:42,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:43:42,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:43:42,773 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:43:42,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:40" (3/4) ... [2022-11-25 18:43:42,780 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 18:43:42,842 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/witness.graphml [2022-11-25 18:43:42,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:43:42,843 INFO L158 Benchmark]: Toolchain (without parser) took 4081.89ms. Allocated memory is still 159.4MB. Free memory was 122.3MB in the beginning and 89.7MB in the end (delta: 32.6MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-11-25 18:43:42,843 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:43:42,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1053.78ms. Allocated memory is still 159.4MB. Free memory was 122.3MB in the beginning and 82.7MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 18:43:42,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.66ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 79.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:43:42,844 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 159.4MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:43:42,845 INFO L158 Benchmark]: RCFGBuilder took 713.55ms. Allocated memory is still 159.4MB. Free memory was 77.8MB in the beginning and 61.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:43:42,845 INFO L158 Benchmark]: TraceAbstraction took 2145.38ms. Allocated memory is still 159.4MB. Free memory was 60.3MB in the beginning and 100.2MB in the end (delta: -39.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:43:42,846 INFO L158 Benchmark]: Witness Printer took 69.79ms. Allocated memory is still 159.4MB. Free memory was 100.2MB in the beginning and 89.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:43:42,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1053.78ms. Allocated memory is still 159.4MB. Free memory was 122.3MB in the beginning and 82.7MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.66ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 79.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 159.4MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 713.55ms. Allocated memory is still 159.4MB. Free memory was 77.8MB in the beginning and 61.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2145.38ms. Allocated memory is still 159.4MB. Free memory was 60.3MB in the beginning and 100.2MB in the end (delta: -39.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.79ms. Allocated memory is still 159.4MB. Free memory was 100.2MB in the beginning and 89.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2249, independent: 2189, independent conditional: 168, independent unconditional: 2021, dependent: 60, dependent conditional: 51, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2199, independent: 2189, independent conditional: 168, independent unconditional: 2021, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2199, independent: 2189, independent conditional: 168, independent unconditional: 2021, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2201, independent: 2189, independent conditional: 1, independent unconditional: 2188, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2201, independent: 2189, independent conditional: 1, independent unconditional: 2188, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2201, independent: 2189, independent conditional: 1, independent unconditional: 2188, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1860, independent: 1849, independent conditional: 1, independent unconditional: 1848, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1860, independent: 1844, independent conditional: 0, independent unconditional: 1844, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, independent: 58, independent conditional: 10, independent unconditional: 48, dependent: 124, dependent conditional: 13, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2201, independent: 340, independent conditional: 0, independent unconditional: 340, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 1860, unknown conditional: 2, unknown unconditional: 1858] , Statistics on independence cache: Total cache size (in pairs): 1860, Positive cache size: 1849, Positive conditional cache size: 1, Positive unconditional cache size: 1848, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 50 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 230, Number of trivial persistent sets: 205, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2030, independent: 2021, independent conditional: 0, independent unconditional: 2021, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2249, independent: 2189, independent conditional: 168, independent unconditional: 2021, dependent: 60, dependent conditional: 51, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2199, independent: 2189, independent conditional: 168, independent unconditional: 2021, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2199, independent: 2189, independent conditional: 168, independent unconditional: 2021, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2201, independent: 2189, independent conditional: 1, independent unconditional: 2188, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2201, independent: 2189, independent conditional: 1, independent unconditional: 2188, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2201, independent: 2189, independent conditional: 1, independent unconditional: 2188, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1860, independent: 1849, independent conditional: 1, independent unconditional: 1848, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1860, independent: 1844, independent conditional: 0, independent unconditional: 1844, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, independent: 58, independent conditional: 10, independent unconditional: 48, dependent: 124, dependent conditional: 13, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2201, independent: 340, independent conditional: 0, independent unconditional: 340, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 1860, unknown conditional: 2, unknown unconditional: 1858] , Statistics on independence cache: Total cache size (in pairs): 1860, Positive cache size: 1849, Positive conditional cache size: 1, Positive unconditional cache size: 1848, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 50 - CounterExampleResult [Line: 1284]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1227] 0 static int iSet = 4; VAL [iSet={10:0}] [L1228] 0 static int iCheck = 1; VAL [iCheck={11:0}, iSet={10:0}] [L1229] 0 static int a = 0; VAL [a=0, iCheck={11:0}, iSet={10:0}] [L1230] 0 static int b = 0; VAL [a=0, b=0, iCheck={11:0}, iSet={10:0}] [L1237] 0 int i, err; VAL [\old(argc)=3, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, iCheck={11:0}, iSet={10:0}] [L1238] COND TRUE 0 argc != 1 VAL [\old(argc)=3, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, iCheck={11:0}, iSet={10:0}] [L1239] COND FALSE 0 !(argc != 3) VAL [\old(argc)=3, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, iCheck={11:0}, iSet={10:0}] [L1247] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, iCheck={11:0}, iSet={10:0}] [L1247] 0 pthread_t setPool[iSet]; VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1248] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1248] 0 pthread_t checkPool[iCheck]; VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1249] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1249] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1249] COND TRUE 0 i < iSet VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1250] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-1, setPool={14:0}] [L1277] 1 a = 1 VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}] [L1250] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-1, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, setPool={14:0}] [L1250] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-1, setPool={14:0}] [L1249] 0 i++ VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1249] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1249] COND FALSE 0 !(i < iSet) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1255] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1255] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=15, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1255] COND TRUE 0 i < iCheck VAL [\old(argc)=3, \read(iCheck)=15, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1256-L1257] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={61:62}, argv={61:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=0, setPool={14:0}] [L1282] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] [L1284] 2 reach_error() VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: checkThreadThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 159 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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! [2022-11-25 18:43:42,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:43:43,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4933fb1a-f05d-4f8c-be5c-318254e4bbea/bin/ugemcutter-syNpU3ikLH/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