./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL --witnessprinter.witness.filename witness --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 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:12:38,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:12:38,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-08 12:12:38,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:12:38,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:12:38,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:12:38,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:12:38,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:12:38,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:12:38,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:12:38,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:12:38,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:12:38,932 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:12:38,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:12:38,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:12:38,934 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:12:38,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:12:38,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:12:38,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:12:38,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:12:38,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:12:38,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:12:38,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:12:38,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:12:38,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:12:38,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:12:38,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:12:38,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:12:38,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:12:38,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:12:38,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:38,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:12:38,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:12:38,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:12:38,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:12:38,948 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-08 12:12:38,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:12:38,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:12:38,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:12:38,967 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:12:38,967 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:12:38,968 INFO L153 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_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 [2024-11-08 12:12:39,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:12:39,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:12:39,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:12:39,328 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:12:39,329 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:12:39,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/pthread/twostage_3.i Unable to find full path for "g++" [2024-11-08 12:12:41,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:12:41,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:12:41,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/sv-benchmarks/c/pthread/twostage_3.i [2024-11-08 12:12:42,010 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data/6a0c1fb0d/76933c2055b64b2ca72e54ada6de54c3/FLAGd4ab60d63 [2024-11-08 12:12:42,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data/6a0c1fb0d/76933c2055b64b2ca72e54ada6de54c3 [2024-11-08 12:12:42,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:12:42,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:12:42,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:42,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:12:42,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:12:42,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:42" (1/1) ... [2024-11-08 12:12:42,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3709b9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:42, skipping insertion in model container [2024-11-08 12:12:42,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:42" (1/1) ... [2024-11-08 12:12:42,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:12:43,244 WARN L250 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_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/sv-benchmarks/c/pthread/twostage_3.i[59093,59106] [2024-11-08 12:12:43,304 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:43,305 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:43,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:43,320 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:12:43,387 WARN L250 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_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/sv-benchmarks/c/pthread/twostage_3.i[59093,59106] [2024-11-08 12:12:43,401 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:43,402 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:43,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:43,525 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:12:43,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43 WrapperNode [2024-11-08 12:12:43,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:43,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:43,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:12:43,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:12:43,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,615 INFO L138 Inliner]: procedures = 373, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2024-11-08 12:12:43,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:43,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:12:43,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:12:43,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:12:43,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:12:43,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:12:43,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:12:43,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:12:43,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (1/1) ... [2024-11-08 12:12:43,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:43,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:43,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:43,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-08 12:12:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-08 12:12:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-08 12:12:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-08 12:12:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-08 12:12:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:12:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:12:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 12:12:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 12:12:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 12:12:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 12:12:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 12:12:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:12:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 12:12:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:12:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:12:43,780 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:12:44,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:12:44,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:12:44,444 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:12:44,444 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:12:44,837 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:12:44,838 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 12:12:44,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:44 BoogieIcfgContainer [2024-11-08 12:12:44,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:12:44,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:12:44,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:12:44,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:12:44,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:12:42" (1/3) ... [2024-11-08 12:12:44,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1204fdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:44, skipping insertion in model container [2024-11-08 12:12:44,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:43" (2/3) ... [2024-11-08 12:12:44,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1204fdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:44, skipping insertion in model container [2024-11-08 12:12:44,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:44" (3/3) ... [2024-11-08 12:12:44,849 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-11-08 12:12:44,871 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:12:44,871 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:12:44,871 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:12:44,931 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 12:12:45,003 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:12:45,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-08 12:12:45,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:45,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:45,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-08 12:12:45,042 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:12:45,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread1of1ForFork1 ======== [2024-11-08 12:12:45,069 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@57c543a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:12:45,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:12:46,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:46,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1060819456, now seen corresponding path program 1 times [2024-11-08 12:12:46,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:46,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850535199] [2024-11-08 12:12:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:46,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:12:46,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850535199] [2024-11-08 12:12:46,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850535199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:46,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:12:46,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:12:46,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260407490] [2024-11-08 12:12:46,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:46,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:12:46,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:12:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:12:46,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:12:46,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:46,675 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:46,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-11-08 12:12:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:12:47,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:12:47,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:47,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:47,545 INFO L85 PathProgramCache]: Analyzing trace with hash -710626476, now seen corresponding path program 1 times [2024-11-08 12:12:47,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:47,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489050120] [2024-11-08 12:12:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:47,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:48,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:12:48,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489050120] [2024-11-08 12:12:48,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489050120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:48,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:12:48,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 12:12:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271822327] [2024-11-08 12:12:48,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:48,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 12:12:48,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:12:48,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 12:12:48,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:12:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:48,074 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:48,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2024-11-08 12:12:48,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:12:48,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:12:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:12:49,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:12:49,052 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:49,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:49,052 INFO L85 PathProgramCache]: Analyzing trace with hash -509452838, now seen corresponding path program 2 times [2024-11-08 12:12:49,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930567198] [2024-11-08 12:12:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:49,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:12:49,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930567198] [2024-11-08 12:12:49,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930567198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 12:12:49,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315017036] [2024-11-08 12:12:49,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 12:12:49,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:49,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:49,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:12:49,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 12:12:49,690 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 12:12:49,690 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:12:49,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 12:12:49,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:12:49,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 12:12:49,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 12:12:49,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 12:12:49,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 12:12:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:49,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:12:49,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315017036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:49,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 12:12:49,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-08 12:12:49,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132327269] [2024-11-08 12:12:49,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:49,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:12:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:12:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:12:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 12:12:49,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:49,924 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:49,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-08 12:12:49,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:12:49,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:12:49,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:12:50,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:12:50,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:12:50,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 12:12:50,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:50,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:50,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:50,579 INFO L85 PathProgramCache]: Analyzing trace with hash 412326416, now seen corresponding path program 3 times [2024-11-08 12:12:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:50,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925049100] [2024-11-08 12:12:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:50,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:12:50,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:12:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:12:50,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:12:50,676 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:12:50,677 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:12:50,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 12:12:50,688 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-08 12:12:50,690 INFO L317 ceAbstractionStarter]: Result for error location funcBThread1of1ForFork1 was UNSAFE (1/2) [2024-11-08 12:12:50,794 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 12:12:50,794 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:12:50,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-08 12:12:50,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:12:50 BasicIcfg [2024-11-08 12:12:50,825 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:12:50,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:12:50,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:12:50,826 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:12:50,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:44" (3/4) ... [2024-11-08 12:12:50,830 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:12:50,833 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:12:50,834 INFO L158 Benchmark]: Toolchain (without parser) took 8632.24ms. Allocated memory was 125.8MB in the beginning and 207.6MB in the end (delta: 81.8MB). Free memory was 64.3MB in the beginning and 142.4MB in the end (delta: -78.1MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-11-08 12:12:50,834 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:50,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1322.79ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 64.2MB in the beginning and 114.0MB in the end (delta: -49.9MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2024-11-08 12:12:50,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.95ms. Allocated memory is still 172.0MB. Free memory was 114.0MB in the beginning and 111.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:12:50,840 INFO L158 Benchmark]: Boogie Preprocessor took 60.60ms. Allocated memory is still 172.0MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:12:50,840 INFO L158 Benchmark]: RCFGBuilder took 1160.56ms. Allocated memory is still 172.0MB. Free memory was 109.0MB in the beginning and 121.1MB in the end (delta: -12.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-08 12:12:50,841 INFO L158 Benchmark]: TraceAbstraction took 5983.79ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.0MB in the beginning and 142.4MB in the end (delta: -22.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-08 12:12:50,841 INFO L158 Benchmark]: Witness Printer took 7.45ms. Allocated memory is still 207.6MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:50,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1322.79ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 64.2MB in the beginning and 114.0MB in the end (delta: -49.9MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.95ms. Allocated memory is still 172.0MB. Free memory was 114.0MB in the beginning and 111.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.60ms. Allocated memory is still 172.0MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1160.56ms. Allocated memory is still 172.0MB. Free memory was 109.0MB in the beginning and 121.1MB in the end (delta: -12.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5983.79ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.0MB in the beginning and 142.4MB in the end (delta: -22.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 7.45ms. Allocated memory is still 207.6MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3178, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 191, dependent conditional: 156, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 46, dependent conditional: 11, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1817, independent: 1780, independent conditional: 2, independent unconditional: 1778, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1817, independent: 1746, independent conditional: 0, independent unconditional: 1746, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2374, independent: 1294, independent conditional: 64, independent unconditional: 1230, dependent: 1079, dependent conditional: 41, dependent unconditional: 1038, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3033, independent: 1207, independent conditional: 0, independent unconditional: 1207, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 1817, unknown conditional: 4, unknown unconditional: 1813] , Statistics on independence cache: Total cache size (in pairs): 1817, Positive cache size: 1780, Positive conditional cache size: 2, Positive unconditional cache size: 1778, Negative cache size: 37, Negative conditional cache size: 2, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1074, Maximal queried relation: 2, Independence queries for same thread: 152, Persistent sets #1 benchmarks: Persistent set computation time: 2.4s, Number of persistent set computation: 289, Number of trivial persistent sets: 227, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1955, independent: 1920, independent conditional: 0, independent unconditional: 1920, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3178, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 191, dependent conditional: 156, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 46, dependent conditional: 11, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1817, independent: 1780, independent conditional: 2, independent unconditional: 1778, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1817, independent: 1746, independent conditional: 0, independent unconditional: 1746, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2374, independent: 1294, independent conditional: 64, independent unconditional: 1230, dependent: 1079, dependent conditional: 41, dependent unconditional: 1038, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3033, independent: 1207, independent conditional: 0, independent unconditional: 1207, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 1817, unknown conditional: 4, unknown unconditional: 1813] , Statistics on independence cache: Total cache size (in pairs): 1817, Positive cache size: 1780, Positive conditional cache size: 2, Positive unconditional cache size: 1778, Negative cache size: 37, Negative conditional cache size: 2, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1074, Maximal queried relation: 2, Independence queries for same thread: 152 - UnprovableResult [Line: 1272]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1284. Possible FailurePath: [L1236] 0 static int iTThreads = 2; [L1237] 0 static int iRThreads = 1; [L1238] 0 static int data1Value = 0; [L1239] 0 static int data2Value = 0; [L1240] 0 pthread_mutex_t *data1Lock; [L1241] 0 pthread_mutex_t *data2Lock; [L1278] 0 int i,err; [L1279] COND TRUE 0 argc != 1 [L1280] COND FALSE 0 !(argc != 3) [L1288] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) [L1291] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1292] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1293] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1297] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) [L1297] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1301] 0 pthread_t tPool[iTThreads]; [L1302] 0 pthread_t rPool[iRThreads]; [L1303] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:51}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={5:0}, tPool={6:0}] [L1303] COND FALSE 0 !(i < iTThreads) VAL [\old(argc)=3, \old(argv)={50:51}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={5:0}, tPool={6:0}] [L1303] COND TRUE 0 i < iTThreads [L1304] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={5:0}, tPool={6:0}] [L1245] 1 int t1 = -1; VAL [\old(param)={0:0}, data1Lock={-2:0}, data1Value=0, data2Lock={-1:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=-1] [L1247] 1 data1Value = 1 VAL [\old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=-1] [L1250] 1 t1 = data1Value VAL [\old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=1] [L1304] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) [L1304] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) [L1303] 0 i++ VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=1, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1303] COND TRUE 0 i < iTThreads VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=1, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1309] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1309] COND FALSE 0 !(i < iRThreads) VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1258] 2 int t1 = -1; [L1259] 2 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 2 !(data1Value == 0) [L1265] 2 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 2 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1253] 1 data2Value = t1 + 1 VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=2, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1255] 1 return ((void *)0); [L1270] COND TRUE 2 t2 != (t1 + 1) [L1272] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, \result={0:0}, data1Lock={-2:0}, data1Value=1, data2Lock={-1:0}, data2Value=2, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 88 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 3.3s, 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: 14, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 SizeOfPredicates, 1 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/3 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 could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:12:50,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL --witnessprinter.witness.filename witness --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 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:12:53,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:12:53,780 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-08 12:12:53,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:12:53,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:12:53,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:12:53,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:12:53,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:12:53,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:12:53,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:12:53,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:12:53,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:12:53,827 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:12:53,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:12:53,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:12:53,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:12:53,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:12:53,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:12:53,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:12:53,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:12:53,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:12:53,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:12:53,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:12:53,835 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:12:53,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:12:53,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:12:53,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:12:53,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:12:53,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:12:53,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:12:53,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:12:53,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:53,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:12:53,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:12:53,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:12:53,839 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 12:12:53,839 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-08 12:12:53,840 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:12:53,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:12:53,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:12:53,841 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:12:53,842 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:12:53,842 INFO L153 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_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 [2024-11-08 12:12:54,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:12:54,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:12:54,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:12:54,327 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:12:54,328 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:12:54,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/pthread/twostage_3.i Unable to find full path for "g++" [2024-11-08 12:12:56,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:12:56,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:12:56,987 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/sv-benchmarks/c/pthread/twostage_3.i [2024-11-08 12:12:57,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data/3283a9951/c372bca40fe84d21ab227ac614f9fa1f/FLAG29714fa36 [2024-11-08 12:12:57,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/data/3283a9951/c372bca40fe84d21ab227ac614f9fa1f [2024-11-08 12:12:57,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:12:57,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:12:57,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:57,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:12:57,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:12:57,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:57" (1/1) ... [2024-11-08 12:12:57,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e78f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:57, skipping insertion in model container [2024-11-08 12:12:57,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:57" (1/1) ... [2024-11-08 12:12:57,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:12:58,301 WARN L250 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_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/sv-benchmarks/c/pthread/twostage_3.i[59093,59106] [2024-11-08 12:12:58,345 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:58,348 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:58,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:58,391 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:12:58,466 WARN L250 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_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/sv-benchmarks/c/pthread/twostage_3.i[59093,59106] [2024-11-08 12:12:58,482 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:58,483 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-08 12:12:58,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:58,622 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:12:58,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58 WrapperNode [2024-11-08 12:12:58,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:58,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:58,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:12:58,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:12:58,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,704 INFO L138 Inliner]: procedures = 376, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2024-11-08 12:12:58,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:58,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:12:58,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:12:58,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:12:58,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,741 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:12:58,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:12:58,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:12:58,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:12:58,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (1/1) ... [2024-11-08 12:12:58,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:58,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:58,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:58,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-08 12:12:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 12:12:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-08 12:12:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-08 12:12:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-08 12:12:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-08 12:12:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:12:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:12:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 12:12:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 12:12:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 12:12:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 12:12:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 12:12:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:12:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:12:58,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:12:58,842 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:12:59,036 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:12:59,039 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:12:59,514 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:12:59,515 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:12:59,879 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:12:59,879 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 12:12:59,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:59 BoogieIcfgContainer [2024-11-08 12:12:59,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:12:59,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:12:59,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:12:59,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:12:59,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:12:57" (1/3) ... [2024-11-08 12:12:59,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fd06db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:59, skipping insertion in model container [2024-11-08 12:12:59,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:58" (2/3) ... [2024-11-08 12:12:59,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fd06db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:59, skipping insertion in model container [2024-11-08 12:12:59,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:59" (3/3) ... [2024-11-08 12:12:59,894 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-11-08 12:12:59,915 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:12:59,915 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:12:59,916 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:12:59,995 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 12:13:00,069 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:13:00,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-08 12:13:00,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:13:00,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-08 12:13:00,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-08 12:13:00,115 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:13:00,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread1of1ForFork1 ======== [2024-11-08 12:13:00,140 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7656acbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:13:00,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:13:01,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:01,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:01,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1976111040, now seen corresponding path program 1 times [2024-11-08 12:13:01,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:13:01,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046190914] [2024-11-08 12:13:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:13:01,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:01,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:13:01,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:13:01,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 12:13:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:13:01,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 12:13:01,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:13:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:13:01,694 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:13:01,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:13:01,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046190914] [2024-11-08 12:13:01,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046190914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:13:01,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:13:01,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:13:01,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348558835] [2024-11-08 12:13:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:13:01,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:13:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:13:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:13:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:13:01,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:01,749 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:13:01,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-11-08 12:13:01,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:02,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:13:02,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 12:13:03,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:03,140 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:03,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:03,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1126977646, now seen corresponding path program 1 times [2024-11-08 12:13:03,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:13:03,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177863112] [2024-11-08 12:13:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:13:03,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:13:03,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:13:03,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 12:13:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:13:03,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 12:13:03,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:13:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:13:03,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:13:03,578 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:13:03,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177863112] [2024-11-08 12:13:03,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177863112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:13:03,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:13:03,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 12:13:03,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081459100] [2024-11-08 12:13:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:13:03,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 12:13:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:13:03,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 12:13:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:13:03,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:03,585 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:13:03,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2024-11-08 12:13:03,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:13:03,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:13:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:13:04,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 12:13:05,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:05,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:05,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:05,075 INFO L85 PathProgramCache]: Analyzing trace with hash -925804008, now seen corresponding path program 2 times [2024-11-08 12:13:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:13:05,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156456751] [2024-11-08 12:13:05,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 12:13:05,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:05,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:13:05,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:13:05,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 12:13:05,285 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 12:13:05,285 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:13:05,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 12:13:05,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:13:05,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-08 12:13:05,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-08 12:13:05,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-08 12:13:05,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-08 12:13:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:13:05,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:13:05,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:13:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156456751] [2024-11-08 12:13:05,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156456751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:13:05,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:13:05,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:13:05,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786811162] [2024-11-08 12:13:05,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:13:05,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:13:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:13:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:13:05,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:13:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:05,579 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:13:05,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-08 12:13:05,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:13:05,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:13:05,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:06,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:13:06,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:13:06,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:13:06,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 12:13:06,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:06,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:06,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash -4024754, now seen corresponding path program 3 times [2024-11-08 12:13:06,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:13:06,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462266737] [2024-11-08 12:13:06,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 12:13:06,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:06,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:13:06,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:13:06,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 12:13:06,688 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 12:13:06,688 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-08 12:13:06,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:13:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:13:06,842 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 12:13:06,842 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:13:06,843 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:13:06,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 12:13:07,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:13:07,058 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-08 12:13:07,060 INFO L317 ceAbstractionStarter]: Result for error location funcBThread1of1ForFork1 was UNSAFE (1/2) [2024-11-08 12:13:07,165 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 12:13:07,166 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:13:07,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-08 12:13:07,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:13:07 BasicIcfg [2024-11-08 12:13:07,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:13:07,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:13:07,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:13:07,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:13:07,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:59" (3/4) ... [2024-11-08 12:13:07,204 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:13:07,205 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:13:07,206 INFO L158 Benchmark]: Toolchain (without parser) took 9998.10ms. Allocated memory was 81.8MB in the beginning and 151.0MB in the end (delta: 69.2MB). Free memory was 58.9MB in the beginning and 60.3MB in the end (delta: -1.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,207 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 143.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1414.74ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 58.7MB in the beginning and 97.1MB in the end (delta: -38.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.32ms. Allocated memory is still 125.8MB. Free memory was 97.1MB in the beginning and 94.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,209 INFO L158 Benchmark]: Boogie Preprocessor took 53.72ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 91.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,210 INFO L158 Benchmark]: RCFGBuilder took 1121.32ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 67.5MB in the end (delta: 24.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,210 INFO L158 Benchmark]: TraceAbstraction took 7314.57ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 66.6MB in the beginning and 60.3MB in the end (delta: 6.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-08 12:13:07,211 INFO L158 Benchmark]: Witness Printer took 6.70ms. Allocated memory is still 151.0MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:07,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 143.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1414.74ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 58.7MB in the beginning and 97.1MB in the end (delta: -38.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.32ms. Allocated memory is still 125.8MB. Free memory was 97.1MB in the beginning and 94.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.72ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 91.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1121.32ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 67.5MB in the end (delta: 24.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7314.57ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 66.6MB in the beginning and 60.3MB in the end (delta: 6.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 6.70ms. Allocated memory is still 151.0MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3178, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 191, dependent conditional: 156, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 46, dependent conditional: 11, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1817, independent: 1780, independent conditional: 2, independent unconditional: 1778, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1817, independent: 1746, independent conditional: 0, independent unconditional: 1746, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3226, independent: 1719, independent conditional: 111, independent unconditional: 1607, dependent: 1507, dependent conditional: 48, dependent unconditional: 1459, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3033, independent: 1207, independent conditional: 0, independent unconditional: 1207, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 1817, unknown conditional: 4, unknown unconditional: 1813] , Statistics on independence cache: Total cache size (in pairs): 1817, Positive cache size: 1780, Positive conditional cache size: 2, Positive unconditional cache size: 1778, Negative cache size: 37, Negative conditional cache size: 2, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1074, Maximal queried relation: 2, Independence queries for same thread: 152, Persistent sets #1 benchmarks: Persistent set computation time: 3.2s, Number of persistent set computation: 289, Number of trivial persistent sets: 227, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1955, independent: 1920, independent conditional: 0, independent unconditional: 1920, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3178, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 191, dependent conditional: 156, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3026, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 39, dependent conditional: 4, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 1067, independent unconditional: 1920, dependent: 46, dependent conditional: 11, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3033, independent: 2987, independent conditional: 2, independent unconditional: 2985, dependent: 46, dependent conditional: 2, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1817, independent: 1780, independent conditional: 2, independent unconditional: 1778, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1817, independent: 1746, independent conditional: 0, independent unconditional: 1746, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 34, independent conditional: 2, independent unconditional: 32, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3226, independent: 1719, independent conditional: 111, independent unconditional: 1607, dependent: 1507, dependent conditional: 48, dependent unconditional: 1459, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3033, independent: 1207, independent conditional: 0, independent unconditional: 1207, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 1817, unknown conditional: 4, unknown unconditional: 1813] , Statistics on independence cache: Total cache size (in pairs): 1817, Positive cache size: 1780, Positive conditional cache size: 2, Positive unconditional cache size: 1778, Negative cache size: 37, Negative conditional cache size: 2, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1074, Maximal queried relation: 2, Independence queries for same thread: 152 - UnprovableResult [Line: 1272]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1284. Possible FailurePath: [L1236] 0 static int iTThreads = 2; [L1237] 0 static int iRThreads = 1; [L1238] 0 static int data1Value = 0; [L1239] 0 static int data2Value = 0; [L1240] 0 pthread_mutex_t *data1Lock; [L1241] 0 pthread_mutex_t *data2Lock; [L1278] 0 int i,err; [L1279] COND TRUE 0 argc != 1 [L1280] COND FALSE 0 !(argc != 3) [L1288] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) [L1291] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1292] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1293] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1297] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) [L1297] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1301] 0 pthread_t tPool[iTThreads]; [L1302] 0 pthread_t rPool[iRThreads]; [L1303] 0 i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, argc=3, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={32775:0}, tPool={7:0}] [L1303] COND FALSE 0 !(i < iTThreads) VAL [\old(argc)=3, \old(argv)={0:0}, argc=3, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={32775:0}, tPool={7:0}] [L1303] COND TRUE 0 i < iTThreads [L1304] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={32775:0}, tPool={7:0}] [L1245] 1 int t1 = -1; VAL [\old(param)={0:0}, data1Lock={4:0}, data1Value=0, data2Lock={5:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=-1] [L1247] 1 data1Value = 1 VAL [\old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=-1] [L1250] 1 t1 = data1Value VAL [\old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=1] [L1304] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) [L1304] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) [L1303] 0 i++ VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=1, iRThreads=1, iTThreads=1, param={0:0}, rPool={32775:0}, t1=1, tPool={7:0}] [L1303] COND TRUE 0 i < iTThreads VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=1, iRThreads=1, iTThreads=1, param={0:0}, rPool={32775:0}, t1=1, tPool={7:0}] [L1309] 0 i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={32775:0}, t1=1, tPool={7:0}] [L1309] COND FALSE 0 !(i < iRThreads) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={32775:0}, t1=1, tPool={7:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={32775:0}, t1=1, tPool={7:0}] [L1258] 2 int t1 = -1; [L1259] 2 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 2 !(data1Value == 0) [L1265] 2 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 2 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1253] 1 data2Value = t1 + 1 VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=2, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1255] 1 return ((void *)0); [L1270] COND TRUE 2 t2 != (t1 + 1) [L1272] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, \result={0:0}, data1Lock={4:0}, data1Value=1, data2Lock={5:0}, data2Value=2, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 88 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 4.4s, 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: 14, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 447 SizeOfPredicates, 4 NumberOfNonLiveVariables, 387 ConjunctsInSsa, 15 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 could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:13:07,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db9cfa6-5be3-4b91-89c6-be03e9c10cc7/bin/ugemcutter-verify-v6A4Riy6iL/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 Result: UNKNOWN: Overapproximated counterexample