./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:16:30,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:16:30,456 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 05:16:30,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:16:30,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:16:30,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:16:30,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:16:30,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:16:30,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:16:30,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:16:30,508 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:16:30,509 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:16:30,510 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:16:30,510 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:16:30,512 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:16:30,513 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:16:30,513 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:16:30,513 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:16:30,514 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:16:30,514 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:16:30,514 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:16:30,519 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:16:30,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:16:30,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:16:30,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:16:30,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:16:30,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:16:30,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:16:30,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:16:30,521 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:16:30,521 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:16:30,521 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:16:30,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:16:30,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:16:30,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:16:30,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:16:30,523 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:16:30,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:16:30,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:16:30,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:16:30,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:16:30,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:30,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:16:30,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:16:30,525 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:16:30,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:16:30,525 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:16:30,525 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:16:30,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:16:30,526 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-09 05:16:30,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:16:30,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:16:30,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:16:30,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:16:30,808 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:16:30,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i Unable to find full path for "g++" [2024-11-09 05:16:33,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:16:33,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:16:33,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-09 05:16:33,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data/f33ee95bf/b6ac1ec2eb7a48359329834aa44638c4/FLAG770cf8aab [2024-11-09 05:16:33,448 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data/f33ee95bf/b6ac1ec2eb7a48359329834aa44638c4 [2024-11-09 05:16:33,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:16:33,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:16:33,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:33,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:16:33,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:16:33,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:33" (1/1) ... [2024-11-09 05:16:33,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4857418c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:33, skipping insertion in model container [2024-11-09 05:16:33,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:33" (1/1) ... [2024-11-09 05:16:33,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:16:34,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:34,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:16:34,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:34,504 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:16:34,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34 WrapperNode [2024-11-09 05:16:34,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:34,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:34,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:16:34,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:16:34,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,554 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2024-11-09 05:16:34,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:34,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:16:34,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:16:34,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:16:34,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:16:34,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:16:34,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:16:34,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:16:34,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (1/1) ... [2024-11-09 05:16:34,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:34,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:34,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:16:34,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:16:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 05:16:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 05:16:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-09 05:16:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-09 05:16:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:16:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:16:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:16:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:16:34,658 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 05:16:34,798 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:16:34,800 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:16:35,032 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:16:35,032 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:16:35,460 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:16:35,460 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:16:35,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:35 BoogieIcfgContainer [2024-11-09 05:16:35,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:16:35,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:16:35,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:16:35,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:16:35,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:33" (1/3) ... [2024-11-09 05:16:35,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b1e7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:35, skipping insertion in model container [2024-11-09 05:16:35,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:34" (2/3) ... [2024-11-09 05:16:35,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b1e7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:35, skipping insertion in model container [2024-11-09 05:16:35,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:35" (3/3) ... [2024-11-09 05:16:35,470 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-09 05:16:35,489 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:16:35,490 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:16:35,490 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:16:35,534 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 05:16:35,569 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 32 transitions, 71 flow [2024-11-09 05:16:35,596 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 63 states have (on average 2.1587301587301586) internal successors, (136), 64 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:35,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:16:35,640 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@5bae79f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:16:35,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 05:16:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 63 states have (on average 2.1587301587301586) internal successors, (136), 64 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:16:35,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:35,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:35,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:35,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 235039488, now seen corresponding path program 1 times [2024-11-09 05:16:35,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:35,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136369838] [2024-11-09 05:16:35,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:35,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:36,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:36,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136369838] [2024-11-09 05:16:36,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136369838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:36,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:36,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956934072] [2024-11-09 05:16:36,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:36,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:36,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:36,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:36,071 INFO L87 Difference]: Start difference. First operand has 65 states, 63 states have (on average 2.1587301587301586) internal successors, (136), 64 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-09 05:16:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:36,161 INFO L93 Difference]: Finished difference Result 119 states and 255 transitions. [2024-11-09 05:16:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:36,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2024-11-09 05:16:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:36,179 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:16:36,180 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 05:16:36,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:36,189 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:36,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:36,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 05:16:36,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 73. [2024-11-09 05:16:36,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 2.1666666666666665) internal successors, (156), 72 states have internal predecessors, (156), 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) [2024-11-09 05:16:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 156 transitions. [2024-11-09 05:16:36,237 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 156 transitions. Word has length 12 [2024-11-09 05:16:36,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:36,238 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 156 transitions. [2024-11-09 05:16:36,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-09 05:16:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 156 transitions. [2024-11-09 05:16:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 05:16:36,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:36,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:36,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:16:36,240 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:36,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:36,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1613677105, now seen corresponding path program 1 times [2024-11-09 05:16:36,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:36,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976738848] [2024-11-09 05:16:36,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:36,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:36,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:36,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976738848] [2024-11-09 05:16:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976738848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:36,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:36,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:36,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802126393] [2024-11-09 05:16:36,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:36,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:36,461 INFO L87 Difference]: Start difference. First operand 73 states and 156 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2024-11-09 05:16:36,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:36,532 INFO L93 Difference]: Finished difference Result 133 states and 287 transitions. [2024-11-09 05:16:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Word has length 18 [2024-11-09 05:16:36,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:36,534 INFO L225 Difference]: With dead ends: 133 [2024-11-09 05:16:36,534 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 05:16:36,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:36,536 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:36,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 05:16:36,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 95. [2024-11-09 05:16:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 2.148936170212766) internal successors, (202), 94 states have internal predecessors, (202), 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) [2024-11-09 05:16:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 202 transitions. [2024-11-09 05:16:36,555 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 202 transitions. Word has length 18 [2024-11-09 05:16:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:36,556 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 202 transitions. [2024-11-09 05:16:36,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2024-11-09 05:16:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 202 transitions. [2024-11-09 05:16:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 05:16:36,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:36,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:36,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:16:36,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:36,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1303586497, now seen corresponding path program 1 times [2024-11-09 05:16:36,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:36,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970620004] [2024-11-09 05:16:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:36,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:36,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:36,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970620004] [2024-11-09 05:16:36,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970620004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:36,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306868285] [2024-11-09 05:16:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:36,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:36,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:36,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:36,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:16:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:36,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:36,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:36,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:37,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306868285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:37,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1486541456] [2024-11-09 05:16:37,038 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:16:37,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:16:37,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 05:16:37,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604739223] [2024-11-09 05:16:37,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:37,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:16:37,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:37,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:16:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:37,050 INFO L87 Difference]: Start difference. First operand 95 states and 202 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2024-11-09 05:16:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:37,219 INFO L93 Difference]: Finished difference Result 252 states and 562 transitions. [2024-11-09 05:16:37,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:16:37,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) Word has length 22 [2024-11-09 05:16:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:37,227 INFO L225 Difference]: With dead ends: 252 [2024-11-09 05:16:37,227 INFO L226 Difference]: Without dead ends: 231 [2024-11-09 05:16:37,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:37,229 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 36 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:37,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 64 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:37,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-09 05:16:37,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-11-09 05:16:37,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 2.1) internal successors, (483), 230 states have internal predecessors, (483), 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) [2024-11-09 05:16:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 483 transitions. [2024-11-09 05:16:37,267 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 483 transitions. Word has length 22 [2024-11-09 05:16:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:37,268 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 483 transitions. [2024-11-09 05:16:37,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2024-11-09 05:16:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 483 transitions. [2024-11-09 05:16:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 05:16:37,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:37,271 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:37,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:16:37,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:37,472 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:37,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:37,473 INFO L85 PathProgramCache]: Analyzing trace with hash -909140850, now seen corresponding path program 2 times [2024-11-09 05:16:37,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:37,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548267315] [2024-11-09 05:16:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 05:16:37,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548267315] [2024-11-09 05:16:37,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548267315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:37,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993227776] [2024-11-09 05:16:37,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:16:37,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:37,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:37,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:37,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:16:37,889 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:16:37,890 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:37,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:37,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 05:16:37,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 05:16:38,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993227776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:38,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1822958303] [2024-11-09 05:16:38,052 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:16:38,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:16:38,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 05:16:38,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129893769] [2024-11-09 05:16:38,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:38,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:16:38,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:38,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:16:38,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:38,055 INFO L87 Difference]: Start difference. First operand 231 states and 483 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-09 05:16:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:38,133 INFO L93 Difference]: Finished difference Result 572 states and 1272 transitions. [2024-11-09 05:16:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:16:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) Word has length 40 [2024-11-09 05:16:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:38,139 INFO L225 Difference]: With dead ends: 572 [2024-11-09 05:16:38,139 INFO L226 Difference]: Without dead ends: 539 [2024-11-09 05:16:38,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:38,141 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:38,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 46 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-09 05:16:38,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2024-11-09 05:16:38,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.9907063197026023) internal successors, (1071), 538 states have internal predecessors, (1071), 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) [2024-11-09 05:16:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1071 transitions. [2024-11-09 05:16:38,171 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1071 transitions. Word has length 40 [2024-11-09 05:16:38,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:38,172 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 1071 transitions. [2024-11-09 05:16:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-09 05:16:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1071 transitions. [2024-11-09 05:16:38,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:16:38,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:38,175 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:38,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:38,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:38,380 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:38,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash -82539500, now seen corresponding path program 3 times [2024-11-09 05:16:38,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:38,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834621796] [2024-11-09 05:16:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 40 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:16:38,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:38,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834621796] [2024-11-09 05:16:38,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834621796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:38,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154060116] [2024-11-09 05:16:38,614 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:16:38,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:38,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:38,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:38,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:16:38,791 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:16:38,792 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:38,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:16:38,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 40 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:16:38,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 40 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:16:38,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154060116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:38,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1112212520] [2024-11-09 05:16:38,999 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:16:38,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:16:38,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-09 05:16:39,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668705595] [2024-11-09 05:16:39,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:39,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:16:39,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:39,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:16:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:16:39,005 INFO L87 Difference]: Start difference. First operand 539 states and 1071 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 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) [2024-11-09 05:16:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:39,178 INFO L93 Difference]: Finished difference Result 1266 states and 2615 transitions. [2024-11-09 05:16:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:16:39,179 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 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) Word has length 52 [2024-11-09 05:16:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:39,186 INFO L225 Difference]: With dead ends: 1266 [2024-11-09 05:16:39,187 INFO L226 Difference]: Without dead ends: 1223 [2024-11-09 05:16:39,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:16:39,190 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 121 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:39,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 85 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:39,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-09 05:16:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2024-11-09 05:16:39,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1222 states have (on average 1.9959083469721768) internal successors, (2439), 1222 states have internal predecessors, (2439), 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) [2024-11-09 05:16:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 2439 transitions. [2024-11-09 05:16:39,235 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 2439 transitions. Word has length 52 [2024-11-09 05:16:39,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:39,235 INFO L471 AbstractCegarLoop]: Abstraction has 1223 states and 2439 transitions. [2024-11-09 05:16:39,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 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) [2024-11-09 05:16:39,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 2439 transitions. [2024-11-09 05:16:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:16:39,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:39,240 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:39,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:16:39,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:39,441 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:39,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1052583026, now seen corresponding path program 4 times [2024-11-09 05:16:39,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:39,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971943176] [2024-11-09 05:16:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:39,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:39,802 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 7 proven. 280 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:16:39,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:39,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971943176] [2024-11-09 05:16:39,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971943176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:39,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739049016] [2024-11-09 05:16:39,803 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:16:39,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:39,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:39,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:39,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:16:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:39,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:16:39,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 7 proven. 280 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:16:40,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 7 proven. 280 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:16:40,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739049016] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:40,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1730127433] [2024-11-09 05:16:40,442 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:16:40,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:16:40,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-11-09 05:16:40,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251354245] [2024-11-09 05:16:40,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:40,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:16:40,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:40,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:16:40,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:16:40,446 INFO L87 Difference]: Start difference. First operand 1223 states and 2439 transitions. Second operand has 23 states, 23 states have (on average 6.391304347826087) internal successors, (147), 23 states have internal predecessors, (147), 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) [2024-11-09 05:16:40,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:40,768 INFO L93 Difference]: Finished difference Result 2406 states and 4971 transitions. [2024-11-09 05:16:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 05:16:40,769 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.391304347826087) internal successors, (147), 23 states have internal predecessors, (147), 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) Word has length 88 [2024-11-09 05:16:40,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:40,780 INFO L225 Difference]: With dead ends: 2406 [2024-11-09 05:16:40,780 INFO L226 Difference]: Without dead ends: 2363 [2024-11-09 05:16:40,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:16:40,782 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 248 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:40,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 163 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2024-11-09 05:16:40,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2363. [2024-11-09 05:16:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 1.997883149872989) internal successors, (4719), 2362 states have internal predecessors, (4719), 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) [2024-11-09 05:16:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 4719 transitions. [2024-11-09 05:16:40,846 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 4719 transitions. Word has length 88 [2024-11-09 05:16:40,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:40,846 INFO L471 AbstractCegarLoop]: Abstraction has 2363 states and 4719 transitions. [2024-11-09 05:16:40,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.391304347826087) internal successors, (147), 23 states have internal predecessors, (147), 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) [2024-11-09 05:16:40,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 4719 transitions. [2024-11-09 05:16:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-09 05:16:40,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:40,853 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:40,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:16:41,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:16:41,054 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:41,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1654213020, now seen corresponding path program 5 times [2024-11-09 05:16:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276276182] [2024-11-09 05:16:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:41,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-09 05:16:41,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:41,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276276182] [2024-11-09 05:16:41,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276276182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:41,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131964103] [2024-11-09 05:16:41,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:16:41,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:41,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:41,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:41,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:16:41,597 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:16:41,597 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:41,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:16:41,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-09 05:16:41,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-09 05:16:42,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131964103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:42,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1657648302] [2024-11-09 05:16:42,131 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:16:42,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:16:42,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-09 05:16:42,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313701575] [2024-11-09 05:16:42,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:42,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:16:42,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:42,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:16:42,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:16:42,134 INFO L87 Difference]: Start difference. First operand 2363 states and 4719 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 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) [2024-11-09 05:16:42,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:42,304 INFO L93 Difference]: Finished difference Result 5468 states and 11544 transitions. [2024-11-09 05:16:42,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:16:42,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 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) Word has length 148 [2024-11-09 05:16:42,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:42,333 INFO L225 Difference]: With dead ends: 5468 [2024-11-09 05:16:42,333 INFO L226 Difference]: Without dead ends: 5339 [2024-11-09 05:16:42,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:16:42,339 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 134 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:42,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 89 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2024-11-09 05:16:42,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2024-11-09 05:16:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 1.999063319595354) internal successors, (10671), 5338 states have internal predecessors, (10671), 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) [2024-11-09 05:16:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 10671 transitions. [2024-11-09 05:16:42,520 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 10671 transitions. Word has length 148 [2024-11-09 05:16:42,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:42,521 INFO L471 AbstractCegarLoop]: Abstraction has 5339 states and 10671 transitions. [2024-11-09 05:16:42,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 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) [2024-11-09 05:16:42,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 10671 transitions. [2024-11-09 05:16:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-09 05:16:42,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:42,537 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:42,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:16:42,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:42,739 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:42,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash 142400112, now seen corresponding path program 6 times [2024-11-09 05:16:42,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:42,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954889970] [2024-11-09 05:16:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:42,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-09 05:16:43,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:43,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954889970] [2024-11-09 05:16:43,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954889970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:16:43,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674205214] [2024-11-09 05:16:43,270 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:16:43,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:43,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:43,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:43,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:16:43,474 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:16:43,474 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:43,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:16:43,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-09 05:16:43,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-09 05:16:44,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674205214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:44,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [80969717] [2024-11-09 05:16:44,237 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:16:44,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:16:44,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-11-09 05:16:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013359506] [2024-11-09 05:16:44,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:44,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:16:44,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:44,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:16:44,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:16:44,242 INFO L87 Difference]: Start difference. First operand 5339 states and 10671 transitions. Second operand has 23 states, 23 states have (on average 5.0) internal successors, (115), 23 states have internal predecessors, (115), 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) [2024-11-09 05:16:44,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:44,610 INFO L93 Difference]: Finished difference Result 10428 states and 21960 transitions. [2024-11-09 05:16:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 05:16:44,610 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.0) internal successors, (115), 23 states have internal predecessors, (115), 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) Word has length 172 [2024-11-09 05:16:44,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:44,665 INFO L225 Difference]: With dead ends: 10428 [2024-11-09 05:16:44,665 INFO L226 Difference]: Without dead ends: 10299 [2024-11-09 05:16:44,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 332 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:16:44,671 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 390 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:44,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 155 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2024-11-09 05:16:44,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 10299. [2024-11-09 05:16:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10299 states, 10298 states have (on average 1.9995144688288988) internal successors, (20591), 10298 states have internal predecessors, (20591), 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) [2024-11-09 05:16:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 20591 transitions. [2024-11-09 05:16:44,980 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 20591 transitions. Word has length 172 [2024-11-09 05:16:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:44,981 INFO L471 AbstractCegarLoop]: Abstraction has 10299 states and 20591 transitions. [2024-11-09 05:16:44,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.0) internal successors, (115), 23 states have internal predecessors, (115), 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) [2024-11-09 05:16:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 20591 transitions. [2024-11-09 05:16:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-09 05:16:45,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:45,006 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:45,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:16:45,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:45,207 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:45,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash -107362684, now seen corresponding path program 7 times [2024-11-09 05:16:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:45,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775010579] [2024-11-09 05:16:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:16:45,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:16:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:16:45,529 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:16:45,529 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:16:45,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-09 05:16:45,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-11-09 05:16:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-09 05:16:45,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:16:45,539 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2024-11-09 05:16:45,731 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 05:16:45,732 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:16:45,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:16:45 BasicIcfg [2024-11-09 05:16:45,735 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:16:45,736 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:16:45,736 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:16:45,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:16:45,737 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:35" (3/4) ... [2024-11-09 05:16:45,740 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:16:45,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:16:45,742 INFO L158 Benchmark]: Toolchain (without parser) took 12288.31ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 112.8MB in the beginning and 60.8MB in the end (delta: 52.0MB). Peak memory consumption was 153.1MB. Max. memory is 16.1GB. [2024-11-09 05:16:45,742 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:16:45,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.17ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 111.7MB in the end (delta: 679.0kB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-11-09 05:16:45,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.46ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 108.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:16:45,744 INFO L158 Benchmark]: Boogie Preprocessor took 29.89ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 107.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:16:45,744 INFO L158 Benchmark]: RCFGBuilder took 875.21ms. Allocated memory is still 148.9MB. Free memory was 107.5MB in the beginning and 101.6MB in the end (delta: 5.9MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2024-11-09 05:16:45,744 INFO L158 Benchmark]: TraceAbstraction took 10271.59ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 100.6MB in the beginning and 61.8MB in the end (delta: 38.8MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. [2024-11-09 05:16:45,745 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 247.5MB. Free memory was 61.8MB in the beginning and 60.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:16:45,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.17ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 111.7MB in the end (delta: 679.0kB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.46ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 108.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.89ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 107.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 875.21ms. Allocated memory is still 148.9MB. Free memory was 107.5MB in the beginning and 101.6MB in the end (delta: 5.9MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10271.59ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 100.6MB in the beginning and 61.8MB in the end (delta: 38.8MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 247.5MB. Free memory was 61.8MB in the beginning and 60.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=0, myglobal=0] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=1, myglobal=1] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=4, myglobal=4] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=5, myglobal=5] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=6, myglobal=6] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=7, myglobal=7] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=8, myglobal=8] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=9, myglobal=9] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=10, myglobal=10] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=11, myglobal=11] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=12, myglobal=12] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=13, myglobal=13] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=14, myglobal=14] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=15, myglobal=15] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=16, myglobal=16] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=17, myglobal=17] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=18, myglobal=18] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=19, myglobal=19] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=20, myglobal=20] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=20, myglobal=20] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=20, myglobal=20] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=20, j=20, myglobal=21, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=21, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=21, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=21, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=22, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=22, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=22, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=22, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=23, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=23, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=23, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=23, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=24, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=24, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=24, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=24, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=25, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=25, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=25, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=25, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=26, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=26, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=26, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=26, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=27, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=27, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=27, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=27, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=28, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=28, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=28, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=28, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=29, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=29, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=29, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=29, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=30, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=30, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=30, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=30, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=31, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=31, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=31, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=31, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=32, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=32, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=32, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=32, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=33, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=33, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=33, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=33, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=34, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=34, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=34, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=34, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=35, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=35, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=35, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=35, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=36, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=36, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=36, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=36, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=37, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=37, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=37, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=37, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=38, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=38, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=38, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=38, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=39, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=39, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=39, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=39, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=40, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=20, myglobal=40, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=20, myglobal=40, mythread=-1] [L1336] 1 return ((void *)0); [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=20, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) [L13] CALL 0 reach_error() [L12] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=20, myglobal=40] [L12] 0 __assert_fail ("0", "pthread-demo-datarace-2.c", 25, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=20, myglobal=40] - UnprovableResult [Line: 1338]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 9, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 988 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 988 mSDsluCounter, 655 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 538 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 766 IncrementalHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 117 mSDtfsCounter, 766 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1086 GetRequests, 1006 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10299occurred in iteration=8, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 46 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1286 NumberOfCodeBlocks, 1154 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 4172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1240 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 7252/8872 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 [2024-11-09 05:16:45,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:16:48,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:16:48,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 05:16:48,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:16:48,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:16:48,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:16:48,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:16:48,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:16:48,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:16:48,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:16:48,613 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:16:48,613 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:16:48,614 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:16:48,619 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:16:48,620 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:16:48,620 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:16:48,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:16:48,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:16:48,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:16:48,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:16:48,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:16:48,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:16:48,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:16:48,626 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:16:48,626 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:16:48,627 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:16:48,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:16:48,628 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:16:48,628 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:16:48,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:16:48,629 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:16:48,629 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:16:48,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:16:48,630 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:16:48,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:16:48,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:16:48,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:16:48,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:16:48,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:48,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:16:48,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:16:48,651 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:16:48,652 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:16:48,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:16:48,652 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:16:48,652 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_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-09 05:16:49,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:16:49,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:16:49,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:16:49,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:16:49,169 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:16:49,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i Unable to find full path for "g++" [2024-11-09 05:16:51,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:16:51,928 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:16:51,928 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-09 05:16:51,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data/49611d6b5/925a581875364e6e94564cb25fd12fae/FLAG52c83af2d [2024-11-09 05:16:51,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/data/49611d6b5/925a581875364e6e94564cb25fd12fae [2024-11-09 05:16:51,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:16:51,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:16:51,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:51,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:16:51,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:16:51,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:51" (1/1) ... [2024-11-09 05:16:51,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbee88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:51, skipping insertion in model container [2024-11-09 05:16:51,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:51" (1/1) ... [2024-11-09 05:16:52,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:16:52,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:52,797 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:16:52,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:52,967 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:16:52,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52 WrapperNode [2024-11-09 05:16:52,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:52,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:52,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:16:52,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:16:52,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,029 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2024-11-09 05:16:53,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:53,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:16:53,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:16:53,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:16:53,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:16:53,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:16:53,093 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:16:53,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:16:53,094 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (1/1) ... [2024-11-09 05:16:53,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:53,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:53,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:16:53,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:16:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 05:16:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:16:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 05:16:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-09 05:16:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-09 05:16:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:16:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:16:53,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:16:53,201 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 05:16:53,397 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:16:53,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:16:53,688 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:16:53,688 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:16:54,291 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:16:54,292 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:16:54,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:54 BoogieIcfgContainer [2024-11-09 05:16:54,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:16:54,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:16:54,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:16:54,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:16:54,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:51" (1/3) ... [2024-11-09 05:16:54,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feb8ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:54, skipping insertion in model container [2024-11-09 05:16:54,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:52" (2/3) ... [2024-11-09 05:16:54,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feb8ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:54, skipping insertion in model container [2024-11-09 05:16:54,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:54" (3/3) ... [2024-11-09 05:16:54,305 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-09 05:16:54,325 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:16:54,325 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:16:54,325 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:16:54,373 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 05:16:54,407 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 32 transitions, 71 flow [2024-11-09 05:16:54,438 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 63 states have (on average 2.1587301587301586) internal successors, (136), 64 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:54,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:16:54,480 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@9334102, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:16:54,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 05:16:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 63 states have (on average 2.1587301587301586) internal successors, (136), 64 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:16:54,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:54,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:54,495 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:54,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2053827904, now seen corresponding path program 1 times [2024-11-09 05:16:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:16:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532824183] [2024-11-09 05:16:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:54,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:54,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:16:54,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:16:54,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 05:16:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:54,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:16:54,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:54,842 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:54,843 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:16:54,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532824183] [2024-11-09 05:16:54,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532824183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:54,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:54,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:54,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042434372] [2024-11-09 05:16:54,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:54,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:16:54,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:16:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:16:54,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:16:54,883 INFO L87 Difference]: Start difference. First operand has 65 states, 63 states have (on average 2.1587301587301586) internal successors, (136), 64 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-09 05:16:54,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:54,932 INFO L93 Difference]: Finished difference Result 66 states and 137 transitions. [2024-11-09 05:16:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:16:54,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) Word has length 12 [2024-11-09 05:16:54,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:54,945 INFO L225 Difference]: With dead ends: 66 [2024-11-09 05:16:54,945 INFO L226 Difference]: Without dead ends: 61 [2024-11-09 05:16:54,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:16:54,954 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:54,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:54,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-09 05:16:54,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-09 05:16:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 2.1666666666666665) internal successors, (130), 60 states have internal predecessors, (130), 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) [2024-11-09 05:16:54,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 130 transitions. [2024-11-09 05:16:55,000 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 130 transitions. Word has length 12 [2024-11-09 05:16:55,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:55,001 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 130 transitions. [2024-11-09 05:16:55,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-09 05:16:55,002 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 130 transitions. [2024-11-09 05:16:55,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:16:55,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:55,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:55,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 05:16:55,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:55,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:55,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:55,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2053826716, now seen corresponding path program 1 times [2024-11-09 05:16:55,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:16:55,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769676484] [2024-11-09 05:16:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:55,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:55,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:16:55,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:16:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 05:16:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:55,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:16:55,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:55,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:55,409 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:16:55,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769676484] [2024-11-09 05:16:55,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769676484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:55,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:55,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209718474] [2024-11-09 05:16:55,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:55,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:55,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:16:55,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:55,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:55,416 INFO L87 Difference]: Start difference. First operand 61 states and 130 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-09 05:16:55,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:55,509 INFO L93 Difference]: Finished difference Result 111 states and 239 transitions. [2024-11-09 05:16:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2024-11-09 05:16:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:55,512 INFO L225 Difference]: With dead ends: 111 [2024-11-09 05:16:55,514 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 05:16:55,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:55,516 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:55,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 05:16:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 79. [2024-11-09 05:16:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 2.1538461538461537) internal successors, (168), 78 states have internal predecessors, (168), 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) [2024-11-09 05:16:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 168 transitions. [2024-11-09 05:16:55,536 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 168 transitions. Word has length 12 [2024-11-09 05:16:55,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:55,536 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 168 transitions. [2024-11-09 05:16:55,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-09 05:16:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 168 transitions. [2024-11-09 05:16:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:16:55,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:55,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:55,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:55,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:55,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:55,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:55,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1624618906, now seen corresponding path program 1 times [2024-11-09 05:16:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:16:55,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656589575] [2024-11-09 05:16:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:55,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:55,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:16:55,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:16:55,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 05:16:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:55,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:55,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:55,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:56,000 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:16:56,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656589575] [2024-11-09 05:16:56,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656589575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2097864240] [2024-11-09 05:16:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,001 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:16:56,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:16:56,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:16:56,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 05:16:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:56,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:56,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:56,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:56,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2097864240] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:56,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441485609] [2024-11-09 05:16:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:56,325 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:56,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:16:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:56,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:16:56,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:56,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:56,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441485609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:56,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 05:16:56,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4, 4] total 7 [2024-11-09 05:16:56,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071230242] [2024-11-09 05:16:56,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:56,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:56,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:16:56,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:56,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:56,528 INFO L87 Difference]: Start difference. First operand 79 states and 168 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-09 05:16:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:56,598 INFO L93 Difference]: Finished difference Result 148 states and 317 transitions. [2024-11-09 05:16:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:56,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) Word has length 16 [2024-11-09 05:16:56,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:56,600 INFO L225 Difference]: With dead ends: 148 [2024-11-09 05:16:56,601 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 05:16:56,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:56,602 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:56,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 25 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:56,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 05:16:56,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 95. [2024-11-09 05:16:56,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 2.148936170212766) internal successors, (202), 94 states have internal predecessors, (202), 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) [2024-11-09 05:16:56,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 202 transitions. [2024-11-09 05:16:56,613 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 202 transitions. Word has length 16 [2024-11-09 05:16:56,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:56,614 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 202 transitions. [2024-11-09 05:16:56,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-09 05:16:56,615 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 202 transitions. [2024-11-09 05:16:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 05:16:56,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:56,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:56,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-09 05:16:56,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:16:57,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:57,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:57,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:57,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 48797505, now seen corresponding path program 1 times [2024-11-09 05:16:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:16:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687174599] [2024-11-09 05:16:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:57,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:16:57,222 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:16:57,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 05:16:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:57,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:57,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:57,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:57,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:57,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:16:57,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687174599] [2024-11-09 05:16:57,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687174599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:57,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2103755698] [2024-11-09 05:16:57,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:57,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:16:57,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:16:57,459 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:16:57,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 05:16:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:57,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:57,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:57,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:57,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2103755698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:57,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275096080] [2024-11-09 05:16:57,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:57,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:57,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:57,788 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:57,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:16:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:57,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:16:57,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:57,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:58,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275096080] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:58,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:16:58,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2024-11-09 05:16:58,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570846828] [2024-11-09 05:16:58,010 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:16:58,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:16:58,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:16:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:16:58,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:16:58,011 INFO L87 Difference]: Start difference. First operand 95 states and 202 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2024-11-09 05:16:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:58,152 INFO L93 Difference]: Finished difference Result 232 states and 527 transitions. [2024-11-09 05:16:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:16:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) Word has length 22 [2024-11-09 05:16:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:58,155 INFO L225 Difference]: With dead ends: 232 [2024-11-09 05:16:58,155 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 05:16:58,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:58,159 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 102 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:58,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 60 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:16:58,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 05:16:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 05:16:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 2.0651162790697675) internal successors, (444), 215 states have internal predecessors, (444), 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) [2024-11-09 05:16:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 444 transitions. [2024-11-09 05:16:58,190 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 444 transitions. Word has length 22 [2024-11-09 05:16:58,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:58,190 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 444 transitions. [2024-11-09 05:16:58,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2024-11-09 05:16:58,190 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 444 transitions. [2024-11-09 05:16:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:16:58,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:58,195 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:58,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 05:16:58,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:58,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-09 05:16:58,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:16:58,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:16:58,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1333794873, now seen corresponding path program 2 times [2024-11-09 05:16:58,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:16:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731312775] [2024-11-09 05:16:58,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:16:58,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:16:58,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:16:58,800 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:16:58,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 05:16:58,977 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:16:58,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:58,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:16:58,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:59,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:16:59,197 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:16:59,197 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:16:59,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731312775] [2024-11-09 05:16:59,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731312775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:16:59,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [223508547] [2024-11-09 05:16:59,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:16:59,198 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:16:59,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:16:59,201 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:16:59,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 05:16:59,529 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:16:59,529 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:59,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:16:59,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:59,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:00,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [223508547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:00,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082718230] [2024-11-09 05:17:00,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:17:00,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:00,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:00,160 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:00,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:17:00,346 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:17:00,346 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:00,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:17:00,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:17:00,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:17:00,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082718230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:00,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:17:00,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10, 10, 4, 4] total 34 [2024-11-09 05:17:00,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827596936] [2024-11-09 05:17:00,552 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:00,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 05:17:00,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:17:00,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 05:17:00,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=987, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 05:17:00,556 INFO L87 Difference]: Start difference. First operand 216 states and 444 transitions. Second operand has 34 states, 34 states have (on average 4.0588235294117645) internal successors, (138), 34 states have internal predecessors, (138), 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) [2024-11-09 05:17:33,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:33,941 INFO L93 Difference]: Finished difference Result 3875 states and 9377 transitions. [2024-11-09 05:17:33,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 458 states. [2024-11-09 05:17:33,945 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.0588235294117645) internal successors, (138), 34 states have internal predecessors, (138), 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) Word has length 34 [2024-11-09 05:17:33,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:33,970 INFO L225 Difference]: With dead ends: 3875 [2024-11-09 05:17:33,970 INFO L226 Difference]: Without dead ends: 3823 [2024-11-09 05:17:34,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 477 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112170 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=31714, Invalid=197248, Unknown=0, NotChecked=0, Total=228962 [2024-11-09 05:17:34,036 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 4513 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 4855 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4513 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 5039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 4855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:34,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4513 Valid, 418 Invalid, 5039 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [184 Valid, 4855 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 05:17:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3823 states. [2024-11-09 05:17:34,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 1211. [2024-11-09 05:17:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 1210 states have (on average 1.9958677685950412) internal successors, (2415), 1210 states have internal predecessors, (2415), 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) [2024-11-09 05:17:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 2415 transitions. [2024-11-09 05:17:34,142 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 2415 transitions. Word has length 34 [2024-11-09 05:17:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:34,143 INFO L471 AbstractCegarLoop]: Abstraction has 1211 states and 2415 transitions. [2024-11-09 05:17:34,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.0588235294117645) internal successors, (138), 34 states have internal predecessors, (138), 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) [2024-11-09 05:17:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 2415 transitions. [2024-11-09 05:17:34,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:17:34,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:34,157 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:34,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-09 05:17:34,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 05:17:34,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:17:34,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:34,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:17:34,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:34,762 INFO L85 PathProgramCache]: Analyzing trace with hash 701188196, now seen corresponding path program 3 times [2024-11-09 05:17:34,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:17:34,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531742477] [2024-11-09 05:17:34,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:17:34,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:17:34,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:17:34,765 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:17:34,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 05:17:34,978 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:17:34,978 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:34,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:17:34,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:35,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:35,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:17:35,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531742477] [2024-11-09 05:17:35,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531742477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:35,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1304752019] [2024-11-09 05:17:35,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:17:35,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:17:35,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:17:35,225 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:17:35,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 05:17:35,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:17:35,603 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:35,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:17:35,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:35,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:35,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1304752019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:35,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657572554] [2024-11-09 05:17:35,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:17:35,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:35,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:35,740 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:35,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:17:35,939 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:17:35,939 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:35,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:17:35,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:35,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:36,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657572554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:36,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:17:36,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2024-11-09 05:17:36,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901795847] [2024-11-09 05:17:36,046 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:36,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:17:36,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:17:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:17:36,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:17:36,048 INFO L87 Difference]: Start difference. First operand 1211 states and 2415 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 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) [2024-11-09 05:17:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:36,432 INFO L93 Difference]: Finished difference Result 2850 states and 5903 transitions. [2024-11-09 05:17:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:17:36,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 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) Word has length 76 [2024-11-09 05:17:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:36,444 INFO L225 Difference]: With dead ends: 2850 [2024-11-09 05:17:36,444 INFO L226 Difference]: Without dead ends: 2759 [2024-11-09 05:17:36,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:17:36,447 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 186 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:36,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 229 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:17:36,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2024-11-09 05:17:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2759. [2024-11-09 05:17:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 2758 states have (on average 1.9981870920957214) internal successors, (5511), 2758 states have internal predecessors, (5511), 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) [2024-11-09 05:17:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 5511 transitions. [2024-11-09 05:17:36,565 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 5511 transitions. Word has length 76 [2024-11-09 05:17:36,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:36,567 INFO L471 AbstractCegarLoop]: Abstraction has 2759 states and 5511 transitions. [2024-11-09 05:17:36,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 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) [2024-11-09 05:17:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 5511 transitions. [2024-11-09 05:17:36,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 05:17:36,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:36,575 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:36,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:17:36,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-09 05:17:36,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:17:37,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:17:37,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:17:37,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1887566138, now seen corresponding path program 4 times [2024-11-09 05:17:37,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:17:37,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811295598] [2024-11-09 05:17:37,178 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:17:37,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:17:37,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:17:37,181 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:17:37,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 05:17:37,413 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:17:37,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:37,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:17:37,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:37,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:38,076 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:17:38,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811295598] [2024-11-09 05:17:38,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811295598] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:38,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1593503331] [2024-11-09 05:17:38,077 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:17:38,077 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:17:38,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:17:38,078 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:17:38,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 05:17:38,471 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:17:38,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:38,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:17:38,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:38,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 05:17:38,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1593503331] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:38,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029257495] [2024-11-09 05:17:38,696 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:17:38,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:38,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:38,699 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:17:38,926 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:17:38,926 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:17:38,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:17:38,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-09 05:17:39,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-09 05:17:40,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029257495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:40,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:17:40,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 13, 13] total 46 [2024-11-09 05:17:40,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015153752] [2024-11-09 05:17:40,011 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:40,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-09 05:17:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:17:40,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-09 05:17:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1741, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:17:40,013 INFO L87 Difference]: Start difference. First operand 2759 states and 5511 transitions. Second operand has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 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) [2024-11-09 05:18:51,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:51,553 INFO L93 Difference]: Finished difference Result 10452 states and 22858 transitions. [2024-11-09 05:18:51,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2024-11-09 05:18:51,554 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 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) Word has length 112 [2024-11-09 05:18:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:51,598 INFO L225 Difference]: With dead ends: 10452 [2024-11-09 05:18:51,599 INFO L226 Difference]: Without dead ends: 10299 [2024-11-09 05:18:51,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1498 GetRequests, 1038 SyntacticMatches, 0 SemanticMatches, 460 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86572 ImplicationChecksByTransitivity, 59.2s TimeCoverageRelationStatistics Valid=37106, Invalid=175876, Unknown=0, NotChecked=0, Total=212982 [2024-11-09 05:18:51,617 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 27076 mSDsluCounter, 8469 mSDsCounter, 0 mSdLazyCounter, 21054 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27076 SdHoareTripleChecker+Valid, 8891 SdHoareTripleChecker+Invalid, 21056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:51,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27076 Valid, 8891 Invalid, 21056 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 21054 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-09 05:18:51,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2024-11-09 05:18:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 10299. [2024-11-09 05:18:51,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10299 states, 10298 states have (on average 1.9995144688288988) internal successors, (20591), 10298 states have internal predecessors, (20591), 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) [2024-11-09 05:18:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 20591 transitions. [2024-11-09 05:18:51,942 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 20591 transitions. Word has length 112 [2024-11-09 05:18:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:51,942 INFO L471 AbstractCegarLoop]: Abstraction has 10299 states and 20591 transitions. [2024-11-09 05:18:51,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 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) [2024-11-09 05:18:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 20591 transitions. [2024-11-09 05:18:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-09 05:18:51,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:51,972 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:51,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:52,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:52,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:52,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:18:52,573 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 05:18:52,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:52,573 INFO L85 PathProgramCache]: Analyzing trace with hash 757091624, now seen corresponding path program 5 times [2024-11-09 05:18:52,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:18:52,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632974944] [2024-11-09 05:18:52,574 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 05:18:52,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:18:52,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:18:52,577 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:18:52,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 05:18:52,941 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-11-09 05:18:52,941 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-09 05:18:52,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:18:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:18:53,229 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:18:53,231 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:18:53,232 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-09 05:18:53,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-11-09 05:18:53,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-09 05:18:53,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-09 05:18:53,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:18:53,438 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2024-11-09 05:18:53,647 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 05:18:53,649 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:18:53,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:18:53 BasicIcfg [2024-11-09 05:18:53,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:18:53,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:18:53,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:18:53,655 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:18:53,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:54" (3/4) ... [2024-11-09 05:18:53,659 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:18:53,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:18:53,660 INFO L158 Benchmark]: Toolchain (without parser) took 121689.45ms. Allocated memory was 79.7MB in the beginning and 465.6MB in the end (delta: 385.9MB). Free memory was 34.7MB in the beginning and 102.2MB in the end (delta: -67.5MB). Peak memory consumption was 320.1MB. Max. memory is 16.1GB. [2024-11-09 05:18:53,661 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:18:53,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 999.40ms. Allocated memory is still 79.7MB. Free memory was 34.5MB in the beginning and 36.3MB in the end (delta: -1.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-11-09 05:18:53,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.28ms. Allocated memory is still 79.7MB. Free memory was 36.3MB in the beginning and 33.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:18:53,662 INFO L158 Benchmark]: Boogie Preprocessor took 58.04ms. Allocated memory is still 79.7MB. Free memory was 33.7MB in the beginning and 31.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:18:53,662 INFO L158 Benchmark]: RCFGBuilder took 1200.05ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 31.6MB in the beginning and 53.3MB in the end (delta: -21.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-11-09 05:18:53,663 INFO L158 Benchmark]: TraceAbstraction took 119358.30ms. Allocated memory was 102.8MB in the beginning and 465.6MB in the end (delta: 362.8MB). Free memory was 52.6MB in the beginning and 102.2MB in the end (delta: -49.6MB). Peak memory consumption was 312.4MB. Max. memory is 16.1GB. [2024-11-09 05:18:53,663 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 465.6MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:18:53,666 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 999.40ms. Allocated memory is still 79.7MB. Free memory was 34.5MB in the beginning and 36.3MB in the end (delta: -1.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.28ms. Allocated memory is still 79.7MB. Free memory was 36.3MB in the beginning and 33.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.04ms. Allocated memory is still 79.7MB. Free memory was 33.7MB in the beginning and 31.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1200.05ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 31.6MB in the beginning and 53.3MB in the end (delta: -21.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 119358.30ms. Allocated memory was 102.8MB in the beginning and 465.6MB in the end (delta: 362.8MB). Free memory was 52.6MB in the beginning and 102.2MB in the end (delta: -49.6MB). Peak memory consumption was 312.4MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 465.6MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=0, myglobal=0, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=0, myglobal=1, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=1, myglobal=1, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=1, myglobal=1, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=1, myglobal=1, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=1, myglobal=2, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=2, myglobal=2, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=2, myglobal=2, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=2, myglobal=2, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=2, myglobal=3, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=3, myglobal=3, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=3, myglobal=3, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=3, myglobal=3, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=3, myglobal=4, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=4, myglobal=4, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=4, myglobal=4, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=4, myglobal=4, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=4, myglobal=5, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=5, myglobal=5, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=5, myglobal=5, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=5, myglobal=5, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=5, myglobal=6, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=6, myglobal=6, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=6, myglobal=6, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=6, myglobal=6, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=6, myglobal=7, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=7, myglobal=7, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=7, myglobal=7, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=7, myglobal=7, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=7, myglobal=8, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=8, myglobal=8, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=8, myglobal=8, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=8, myglobal=8, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=8, myglobal=9, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=9, myglobal=9, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=9, myglobal=9, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=9, myglobal=9, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=9, myglobal=10, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=10, myglobal=10, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=10, myglobal=10, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=10, myglobal=10, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=10, myglobal=11, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=11, myglobal=11, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=11, myglobal=11, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=11, myglobal=11, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=11, myglobal=12, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=12, myglobal=12, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=12, myglobal=12, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=12, myglobal=12, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=12, myglobal=13, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=13, myglobal=13, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=13, myglobal=13, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=13, myglobal=13, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=13, myglobal=14, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=14, myglobal=14, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=14, myglobal=14, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=14, myglobal=14, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=14, myglobal=15, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=15, myglobal=15, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=15, myglobal=15, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=15, myglobal=15, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=15, myglobal=16, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=16, myglobal=16, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=16, myglobal=16, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=16, myglobal=16, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=16, myglobal=17, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=17, myglobal=17, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=17, myglobal=17, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=17, myglobal=17, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=17, myglobal=18, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=18, myglobal=18, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=18, myglobal=18, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=18, myglobal=18, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=18, myglobal=19, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=19, myglobal=19, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, i=19, myglobal=19, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=19, myglobal=19, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, i=19, myglobal=20, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, i=20, myglobal=20, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, i=20, myglobal=20, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=20] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=20] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=20] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=20, myglobal=20] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=21, myglobal=21] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=21, myglobal=21] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=22, myglobal=22] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=22, myglobal=22] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=23, myglobal=23] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=23, myglobal=23] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=24, myglobal=24] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=24, myglobal=24] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=25, myglobal=25] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=25, myglobal=25] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=26, myglobal=26] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=26, myglobal=26] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=27, myglobal=27] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=27, myglobal=27] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=28, myglobal=28] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=28, myglobal=28] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=29, myglobal=29] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=29, myglobal=29] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=30, myglobal=30] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=30, myglobal=30] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=31, myglobal=31] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=31, myglobal=31] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=32, myglobal=32] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=32, myglobal=32] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=33, myglobal=33] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=33, myglobal=33] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=34, myglobal=34] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=34, myglobal=34] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=35, myglobal=35] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=35, myglobal=35] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=36, myglobal=36] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=36, myglobal=36] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=37, myglobal=37] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=37, myglobal=37] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=38, myglobal=38] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=38, myglobal=38] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=39, myglobal=39] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=40, myglobal=40] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=40, myglobal=40] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=40, myglobal=40] [L1336] 1 return ((void *)0); [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=40, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) [L13] CALL 0 reach_error() [L12] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=40, myglobal=40] [L12] 0 __assert_fail ("0", "pthread-demo-datarace-2.c", 25, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=40, myglobal=40] - UnprovableResult [Line: 1338]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 119.0s, OverallIterations: 8, TraceHistogramMax: 20, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 105.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31902 SdHoareTripleChecker+Valid, 16.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31902 mSDsluCounter, 9663 SdHoareTripleChecker+Invalid, 13.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9101 mSDsCounter, 195 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26309 IncrementalHoareTripleChecker+Invalid, 26504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 195 mSolverCounterUnsat, 562 mSDtfsCounter, 26309 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3176 GetRequests, 2214 SyntacticMatches, 0 SemanticMatches, 962 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198750 ImplicationChecksByTransitivity, 88.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10299occurred in iteration=7, InterpolantAutomatonStates: 926, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 2662 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1016 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 1537 ConstructedInterpolants, 0 QuantifiedInterpolants, 3392 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1650 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 31 InterpolantComputations, 3 PerfectInterpolantSequences, 2525/4391 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 [2024-11-09 05:18:53,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361adcfb-0de5-4fd3-aacb-64c601443acf/bin/utaipan-verify-YMUCfTKeje/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