./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w --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 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- 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-2329fc7 [2022-12-13 09:46:23,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:46:23,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:46:23,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:46:23,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:46:23,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:46:23,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:46:23,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:46:23,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:46:23,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:46:23,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:46:23,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:46:23,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:46:23,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:46:23,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:46:23,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:46:23,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:46:23,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:46:23,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:46:23,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:46:23,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:46:23,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:46:23,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:46:23,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:46:23,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:46:23,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:46:23,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:46:23,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:46:23,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:46:23,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:46:23,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:46:23,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:46:23,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:46:23,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:46:23,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:46:23,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:46:23,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:46:23,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:46:23,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:46:23,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:46:23,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:46:23,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 09:46:23,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:46:23,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:46:23,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:46:23,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:46:23,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:46:23,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:46:23,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:46:23,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:46:23,921 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:46:23,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:46:23,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:46:23,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:46:23,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:46:23,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:46:23,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:46:23,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:46:23,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:46:23,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:46:23,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 09:46:23,924 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:46:23,925 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:46:23,925 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_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2022-12-13 09:46:24,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:46:24,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:46:24,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:46:24,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:46:24,120 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:46:24,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/triangular-longer-2.i [2022-12-13 09:46:26,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:46:26,966 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:46:26,966 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/sv-benchmarks/c/pthread/triangular-longer-2.i [2022-12-13 09:46:26,974 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/data/1db0afe57/7396414934164520a24e3f288807372b/FLAGfb4f25cb7 [2022-12-13 09:46:26,985 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/data/1db0afe57/7396414934164520a24e3f288807372b [2022-12-13 09:46:26,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:46:26,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:46:26,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:46:26,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:46:26,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:46:26,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:46:26" (1/1) ... [2022-12-13 09:46:26,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3f3c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:26, skipping insertion in model container [2022-12-13 09:46:26,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:46:26" (1/1) ... [2022-12-13 09:46:26,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:46:27,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:46:27,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,232 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_227896ea-4695-4066-905c-904348d64477/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-12-13 09:46:27,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:46:27,242 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:46:27,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:46:27,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:46:27,269 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_227896ea-4695-4066-905c-904348d64477/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-12-13 09:46:27,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:46:27,290 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:46:27,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27 WrapperNode [2022-12-13 09:46:27,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:46:27,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:46:27,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:46:27,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:46:27,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,319 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-12-13 09:46:27,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:46:27,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:46:27,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:46:27,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:46:27,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:46:27,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:46:27,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:46:27,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:46:27,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (1/1) ... [2022-12-13 09:46:27,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:46:27,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:27,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:46:27,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:46:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 09:46:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 09:46:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 09:46:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 09:46:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:46:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:46:27,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:46:27,391 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:46:27,495 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:46:27,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:46:27,631 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:46:27,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:46:27,638 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 09:46:27,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:27 BoogieIcfgContainer [2022-12-13 09:46:27,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:46:27,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:46:27,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:46:27,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:46:27,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:46:26" (1/3) ... [2022-12-13 09:46:27,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffda956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:46:27, skipping insertion in model container [2022-12-13 09:46:27,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:27" (2/3) ... [2022-12-13 09:46:27,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffda956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:46:27, skipping insertion in model container [2022-12-13 09:46:27,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:27" (3/3) ... [2022-12-13 09:46:27,648 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2022-12-13 09:46:27,656 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 09:46:27,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:46:27,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:46:27,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:46:27,736 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:46:27,773 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:46:27,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:46:27,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:27,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:46:27,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:46:27,806 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:46:27,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 09:46:27,825 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;@4587526b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:46:27,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 09:46:27,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:46:27,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:27,955 INFO L85 PathProgramCache]: Analyzing trace with hash 515301547, now seen corresponding path program 1 times [2022-12-13 09:46:27,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:27,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222037062] [2022-12-13 09:46:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:27,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:28,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:28,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222037062] [2022-12-13 09:46:28,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222037062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:28,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:46:28,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 09:46:28,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661088149] [2022-12-13 09:46:28,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:28,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 09:46:28,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:28,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 09:46:28,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 09:46:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:28,411 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:28,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-12-13 09:46:28,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:28,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:28,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:46:28,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:46:28,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash -558731712, now seen corresponding path program 1 times [2022-12-13 09:46:28,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:28,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219190966] [2022-12-13 09:46:28,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:28,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:28,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219190966] [2022-12-13 09:46:28,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219190966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:28,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:46:28,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 09:46:28,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132100293] [2022-12-13 09:46:28,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:28,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 09:46:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:28,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 09:46:28,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 09:46:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:28,692 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:28,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2022-12-13 09:46:28,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:28,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:28,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:46:28,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:46:28,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:46:28,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:28,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1065499243, now seen corresponding path program 2 times [2022-12-13 09:46:28,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:28,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542992939] [2022-12-13 09:46:28,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:28,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:29,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542992939] [2022-12-13 09:46:29,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542992939] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:46:29,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953839624] [2022-12-13 09:46:29,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:46:29,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:46:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:29,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:46:29,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:46:29,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:46:29,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:46:29,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 09:46:29,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:46:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:29,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:46:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:29,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953839624] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:46:29,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:46:29,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2022-12-13 09:46:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759457321] [2022-12-13 09:46:29,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:46:29,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 09:46:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 09:46:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-12-13 09:46:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:29,625 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:29,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.555555555555555) internal successors, (136), 18 states have internal predecessors, (136), 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) [2022-12-13 09:46:29,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:29,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:46:29,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:29,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:46:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 09:46:29,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:46:30,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:46:30,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:46:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2073994772, now seen corresponding path program 3 times [2022-12-13 09:46:30,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:30,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24041204] [2022-12-13 09:46:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:30,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24041204] [2022-12-13 09:46:30,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24041204] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:46:30,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937622288] [2022-12-13 09:46:30,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 09:46:30,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:46:30,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:30,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:46:30,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 09:46:30,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 09:46:30,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:46:30,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 09:46:30,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:46:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:30,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:46:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:31,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937622288] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:46:31,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:46:31,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 30 [2022-12-13 09:46:31,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672413610] [2022-12-13 09:46:31,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:46:31,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-13 09:46:31,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:31,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-13 09:46:31,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2022-12-13 09:46:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:31,134 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:31,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.5) internal successors, (195), 30 states have internal predecessors, (195), 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) [2022-12-13 09:46:31,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:31,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:46:31,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-12-13 09:46:31,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 09:46:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:46:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 09:46:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 09:46:31,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 09:46:31,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:46:31,779 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:46:31,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1924816701, now seen corresponding path program 4 times [2022-12-13 09:46:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:31,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142782389] [2022-12-13 09:46:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:31,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 09:46:31,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 09:46:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 09:46:31,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 09:46:31,963 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 09:46:31,964 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 09:46:31,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 09:46:31,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 09:46:31,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 09:46:31,971 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2022-12-13 09:46:31,976 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:46:31,976 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:46:32,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:46:32 BasicIcfg [2022-12-13 09:46:32,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:46:32,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 09:46:32,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 09:46:32,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 09:46:32,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:27" (3/4) ... [2022-12-13 09:46:32,064 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 09:46:32,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/witness.graphml [2022-12-13 09:46:32,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 09:46:32,148 INFO L158 Benchmark]: Toolchain (without parser) took 5160.61ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 80.6MB in the beginning and 53.4MB in the end (delta: 27.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-12-13 09:46:32,148 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 09:46:32,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.56ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 60.3MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 09:46:32,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:46:32,149 INFO L158 Benchmark]: Boogie Preprocessor took 17.10ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 57.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:46:32,149 INFO L158 Benchmark]: RCFGBuilder took 303.07ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 44.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 09:46:32,149 INFO L158 Benchmark]: TraceAbstraction took 4418.64ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 43.9MB in the beginning and 78.5MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 09:46:32,150 INFO L158 Benchmark]: Witness Printer took 86.53ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 53.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 09:46:32,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.56ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 60.3MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.10ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 57.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.07ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 44.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4418.64ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 43.9MB in the beginning and 78.5MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.53ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 53.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3998, independent: 3016, independent conditional: 2234, independent unconditional: 782, dependent: 982, dependent conditional: 976, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3026, independent: 3016, independent conditional: 2234, independent unconditional: 782, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3026, independent: 3016, independent conditional: 2234, independent unconditional: 782, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3044, independent: 3016, independent conditional: 14, independent unconditional: 3002, dependent: 28, dependent conditional: 4, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3044, independent: 3016, independent conditional: 14, independent unconditional: 3002, dependent: 28, dependent conditional: 4, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3044, independent: 3016, independent conditional: 14, independent unconditional: 3002, dependent: 28, dependent conditional: 4, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 778, independent: 768, independent conditional: 14, independent unconditional: 754, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 778, independent: 753, independent conditional: 0, independent unconditional: 753, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 25, independent: 15, independent conditional: 14, independent unconditional: 1, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 15, independent conditional: 14, independent unconditional: 1, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 53, independent conditional: 24, independent unconditional: 29, dependent: 31, dependent conditional: 11, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3044, independent: 2248, independent conditional: 0, independent unconditional: 2248, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 778, unknown conditional: 18, unknown unconditional: 760] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 768, Positive conditional cache size: 14, Positive unconditional cache size: 754, Negative cache size: 10, Negative conditional cache size: 4, Negative unconditional cache size: 6, 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: 972 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 48, Number of trivial persistent sets: 31, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 788, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3998, independent: 3016, independent conditional: 2234, independent unconditional: 782, dependent: 982, dependent conditional: 976, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3026, independent: 3016, independent conditional: 2234, independent unconditional: 782, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3026, independent: 3016, independent conditional: 2234, independent unconditional: 782, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3044, independent: 3016, independent conditional: 14, independent unconditional: 3002, dependent: 28, dependent conditional: 4, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3044, independent: 3016, independent conditional: 14, independent unconditional: 3002, dependent: 28, dependent conditional: 4, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3044, independent: 3016, independent conditional: 14, independent unconditional: 3002, dependent: 28, dependent conditional: 4, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 778, independent: 768, independent conditional: 14, independent unconditional: 754, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 778, independent: 753, independent conditional: 0, independent unconditional: 753, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 25, independent: 15, independent conditional: 14, independent unconditional: 1, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 15, independent conditional: 14, independent unconditional: 1, dependent: 10, dependent conditional: 4, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 53, independent conditional: 24, independent unconditional: 29, dependent: 31, dependent conditional: 11, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3044, independent: 2248, independent conditional: 0, independent unconditional: 2248, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 778, unknown conditional: 18, unknown unconditional: 760] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 768, Positive conditional cache size: 14, Positive unconditional cache size: 754, Negative cache size: 10, Negative conditional cache size: 4, Negative unconditional cache size: 6, 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: 972 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; VAL [i=3, j=6] [L712] 0 pthread_t id1, id2; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6] [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, k=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=7] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, i=3, id1={5:0}, id2={3:0}, j=6, k=0, k=0] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1, k=0] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=0] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=1] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=5] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=5] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=5] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=5, k=6] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=6] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=6] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=6] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=7] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=8, k=7] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=7] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=8] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=8, k=9] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=9] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=9] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=10] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=10] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=10] [L719] 0 int condJ = j >= (2*10 +6); VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=25, id1={5:0}, id2={3:0}, j=26, k=10, k=10] [L721] COND TRUE 0 condI || condJ VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=25, id1={5:0}, id2={3:0}, j=26, k=10, k=10] [L722] 0 reach_error() VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=25, id1={5:0}, id2={3:0}, j=26, k=10, k=10] - UnprovableResult [Line: 713]: 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. - UnprovableResult [Line: 714]: 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 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 1.0s, 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: 56, 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, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 523 NumberOfCodeBlocks, 523 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 524 ConstructedInterpolants, 0 QuantifiedInterpolants, 3260 SizeOfPredicates, 18 NumberOfNonLiveVariables, 356 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/330 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! [2022-12-13 09:46:32,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-12-13 09:46:32,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227896ea-4695-4066-905c-904348d64477/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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