./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 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:13,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:13,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:04:13,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:13,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:13,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:13,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:13,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:13,568 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:13,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:13,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:13,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:13,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:13,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:13,573 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:13,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:13,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:13,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:13,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:13,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:13,578 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:04:13,579 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:04:13,580 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:04:13,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:13,581 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:04:13,581 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:13,582 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:13,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:13,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:13,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:13,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:13,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:13,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:13,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:13,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:13,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:13,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:13,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:13,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:13,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:13,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:13,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:13,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-10-31 22:04:13,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:14,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:14,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:14,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:14,031 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:14,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i Unable to find full path for "g++" [2024-10-31 22:04:16,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:16,478 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:16,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-10-31 22:04:16,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data/a68783f0f/d98791bdca284aeca3e44498f3ab3166/FLAG6981b0a38 [2024-10-31 22:04:16,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data/a68783f0f/d98791bdca284aeca3e44498f3ab3166 [2024-10-31 22:04:16,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:16,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:16,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:16,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:16,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:16,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:16" (1/1) ... [2024-10-31 22:04:16,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423a66d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:16, skipping insertion in model container [2024-10-31 22:04:16,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:16" (1/1) ... [2024-10-31 22:04:16,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:17,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:17,745 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:17,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:17,970 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:17,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17 WrapperNode [2024-10-31 22:04:17,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:17,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:17,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:17,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:17,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,087 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2024-10-31 22:04:18,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:18,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:18,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:18,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:18,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,138 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:04:18,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:18,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:18,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:18,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:18,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (1/1) ... [2024-10-31 22:04:18,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:18,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:18,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:18,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:04:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:04:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-10-31 22:04:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-10-31 22:04:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:18,278 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:04:18,484 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:18,487 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:18,740 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:18,740 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:19,248 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:19,249 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:04:19,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:19 BoogieIcfgContainer [2024-10-31 22:04:19,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:19,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:19,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:19,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:19,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:16" (1/3) ... [2024-10-31 22:04:19,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd6c269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:19, skipping insertion in model container [2024-10-31 22:04:19,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:17" (2/3) ... [2024-10-31 22:04:19,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd6c269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:19, skipping insertion in model container [2024-10-31 22:04:19,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:19" (3/3) ... [2024-10-31 22:04:19,262 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-10-31 22:04:19,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:19,282 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:04:19,282 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:19,333 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:04:19,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 27 transitions, 61 flow [2024-10-31 22:04:19,406 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-10-31 22:04:19,407 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:19,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 4/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-10-31 22:04:19,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 27 transitions, 61 flow [2024-10-31 22:04:19,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 25 transitions, 56 flow [2024-10-31 22:04:19,431 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:19,440 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=PETRI_NET, 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;@4b23714a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:19,440 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-31 22:04:19,455 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:19,458 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-10-31 22:04:19,458 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:19,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:19,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:19,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:19,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:19,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2021529890, now seen corresponding path program 1 times [2024-10-31 22:04:19,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:19,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764989999] [2024-10-31 22:04:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:19,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:19,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:19,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764989999] [2024-10-31 22:04:19,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764989999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:19,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:19,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:19,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391774840] [2024-10-31 22:04:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:19,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:19,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:19,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:19,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:19,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-10-31 22:04:19,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:19,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:19,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-10-31 22:04:19,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:19,987 INFO L124 PetriNetUnfolderBase]: 17/56 cut-off events. [2024-10-31 22:04:19,987 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:19,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 56 events. 17/56 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 138 event pairs, 6 based on Foata normal form. 7/59 useless extension candidates. Maximal degree in co-relation 80. Up to 30 conditions per place. [2024-10-31 22:04:19,989 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 15 selfloop transitions, 2 changer transitions 1/25 dead transitions. [2024-10-31 22:04:19,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 25 transitions, 90 flow [2024-10-31 22:04:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:19,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-10-31 22:04:20,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-10-31 22:04:20,006 INFO L175 Difference]: Start difference. First operand has 25 places, 25 transitions, 56 flow. Second operand 3 states and 51 transitions. [2024-10-31 22:04:20,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 25 transitions, 90 flow [2024-10-31 22:04:20,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:20,013 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 52 flow [2024-10-31 22:04:20,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-10-31 22:04:20,020 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-10-31 22:04:20,021 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 52 flow [2024-10-31 22:04:20,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:20,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:20,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:20,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:20,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:20,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:20,024 INFO L85 PathProgramCache]: Analyzing trace with hash 518263413, now seen corresponding path program 1 times [2024-10-31 22:04:20,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157258881] [2024-10-31 22:04:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:20,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:20,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157258881] [2024-10-31 22:04:20,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157258881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:20,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:20,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759648183] [2024-10-31 22:04:20,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:20,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:20,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:20,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-10-31 22:04:20,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-31 22:04:20,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:20,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-10-31 22:04:20,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:20,305 INFO L124 PetriNetUnfolderBase]: 25/82 cut-off events. [2024-10-31 22:04:20,306 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-31 22:04:20,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 82 events. 25/82 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 226 event pairs, 9 based on Foata normal form. 4/82 useless extension candidates. Maximal degree in co-relation 38. Up to 38 conditions per place. [2024-10-31 22:04:20,308 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 17 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-10-31 22:04:20,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 112 flow [2024-10-31 22:04:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-10-31 22:04:20,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-10-31 22:04:20,313 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 52 flow. Second operand 3 states and 48 transitions. [2024-10-31 22:04:20,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 112 flow [2024-10-31 22:04:20,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:20,315 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 62 flow [2024-10-31 22:04:20,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2024-10-31 22:04:20,317 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2024-10-31 22:04:20,317 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 62 flow [2024-10-31 22:04:20,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-31 22:04:20,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:20,318 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:20,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:20,320 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:20,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:20,322 INFO L85 PathProgramCache]: Analyzing trace with hash 378845636, now seen corresponding path program 1 times [2024-10-31 22:04:20,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:20,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457111110] [2024-10-31 22:04:20,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:20,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457111110] [2024-10-31 22:04:20,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457111110] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380494388] [2024-10-31 22:04:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:20,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:20,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:04:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:20,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:04:20,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:04:20,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:04:20,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380494388] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:20,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:20,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-10-31 22:04:20,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585379785] [2024-10-31 22:04:20,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:20,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:04:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:04:20,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:04:20,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-31 22:04:20,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 62 flow. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 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) [2024-10-31 22:04:20,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:20,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-31 22:04:20,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:21,284 INFO L124 PetriNetUnfolderBase]: 76/215 cut-off events. [2024-10-31 22:04:21,285 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-10-31 22:04:21,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 215 events. 76/215 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 688 event pairs, 4 based on Foata normal form. 30/244 useless extension candidates. Maximal degree in co-relation 113. Up to 61 conditions per place. [2024-10-31 22:04:21,290 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 42 selfloop transitions, 33 changer transitions 0/81 dead transitions. [2024-10-31 22:04:21,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 81 transitions, 406 flow [2024-10-31 22:04:21,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:04:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-31 22:04:21,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 233 transitions. [2024-10-31 22:04:21,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393518518518519 [2024-10-31 22:04:21,298 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 62 flow. Second operand 16 states and 233 transitions. [2024-10-31 22:04:21,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 81 transitions, 406 flow [2024-10-31 22:04:21,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 81 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:21,303 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 334 flow [2024-10-31 22:04:21,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=334, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2024-10-31 22:04:21,306 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 26 predicate places. [2024-10-31 22:04:21,306 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 334 flow [2024-10-31 22:04:21,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 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) [2024-10-31 22:04:21,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:21,307 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:21,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:04:21,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:21,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:21,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash -455538255, now seen corresponding path program 2 times [2024-10-31 22:04:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482188295] [2024-10-31 22:04:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:21,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:04:21,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:21,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482188295] [2024-10-31 22:04:21,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482188295] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:21,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42281282] [2024-10-31 22:04:21,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:21,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:21,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:21,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:04:21,974 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:04:21,974 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:21,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:04:21,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:04:22,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:04:22,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42281282] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:22,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:22,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-31 22:04:22,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132736707] [2024-10-31 22:04:22,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:22,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:04:22,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:22,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:04:22,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:04:22,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-31 22:04:22,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 334 flow. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 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) [2024-10-31 22:04:22,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:22,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-31 22:04:22,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:22,471 INFO L124 PetriNetUnfolderBase]: 175/501 cut-off events. [2024-10-31 22:04:22,471 INFO L125 PetriNetUnfolderBase]: For 3066/3066 co-relation queries the response was YES. [2024-10-31 22:04:22,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 501 events. 175/501 cut-off events. For 3066/3066 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2305 event pairs, 41 based on Foata normal form. 59/546 useless extension candidates. Maximal degree in co-relation 1459. Up to 121 conditions per place. [2024-10-31 22:04:22,480 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 61 selfloop transitions, 20 changer transitions 0/90 dead transitions. [2024-10-31 22:04:22,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 90 transitions, 846 flow [2024-10-31 22:04:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:04:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:04:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 124 transitions. [2024-10-31 22:04:22,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-10-31 22:04:22,483 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 334 flow. Second operand 8 states and 124 transitions. [2024-10-31 22:04:22,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 90 transitions, 846 flow [2024-10-31 22:04:22,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 90 transitions, 770 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:22,500 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 404 flow [2024-10-31 22:04:22,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=404, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-10-31 22:04:22,501 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 36 predicate places. [2024-10-31 22:04:22,502 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 404 flow [2024-10-31 22:04:22,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 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) [2024-10-31 22:04:22,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:22,502 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:22,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:04:22,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:22,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:22,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1961131491, now seen corresponding path program 3 times [2024-10-31 22:04:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:22,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350081465] [2024-10-31 22:04:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:22,933 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 22:04:22,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:22,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350081465] [2024-10-31 22:04:22,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350081465] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:22,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530227802] [2024-10-31 22:04:22,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:04:22,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:22,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:22,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:22,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:04:23,173 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-31 22:04:23,173 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:23,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:04:23,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 22:04:23,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 22:04:23,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530227802] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:23,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:23,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-31 22:04:23,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997977394] [2024-10-31 22:04:23,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:23,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:04:23,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:23,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:04:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:04:23,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-31 22:04:23,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 404 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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) [2024-10-31 22:04:23,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:23,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-31 22:04:23,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:23,800 INFO L124 PetriNetUnfolderBase]: 266/767 cut-off events. [2024-10-31 22:04:23,800 INFO L125 PetriNetUnfolderBase]: For 9650/9698 co-relation queries the response was YES. [2024-10-31 22:04:23,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3633 conditions, 767 events. 266/767 cut-off events. For 9650/9698 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3978 event pairs, 16 based on Foata normal form. 56/815 useless extension candidates. Maximal degree in co-relation 3162. Up to 231 conditions per place. [2024-10-31 22:04:23,812 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 144 selfloop transitions, 36 changer transitions 0/187 dead transitions. [2024-10-31 22:04:23,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 187 transitions, 2298 flow [2024-10-31 22:04:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:04:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:04:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 185 transitions. [2024-10-31 22:04:23,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5709876543209876 [2024-10-31 22:04:23,817 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 404 flow. Second operand 12 states and 185 transitions. [2024-10-31 22:04:23,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 187 transitions, 2298 flow [2024-10-31 22:04:23,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 187 transitions, 2054 flow, removed 88 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:23,840 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 632 flow [2024-10-31 22:04:23,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=632, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-10-31 22:04:23,843 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 52 predicate places. [2024-10-31 22:04:23,845 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 632 flow [2024-10-31 22:04:23,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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) [2024-10-31 22:04:23,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:23,846 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:23,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:04:24,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:24,050 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:24,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1295691281, now seen corresponding path program 4 times [2024-10-31 22:04:24,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:24,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329072888] [2024-10-31 22:04:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:24,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-10-31 22:04:24,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329072888] [2024-10-31 22:04:24,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329072888] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:24,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109077056] [2024-10-31 22:04:24,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:04:24,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:24,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:24,426 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:24,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:04:24,618 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:04:24,618 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:24,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:04:24,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-10-31 22:04:24,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-10-31 22:04:24,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109077056] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:24,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:24,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-10-31 22:04:24,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349018229] [2024-10-31 22:04:24,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:24,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 22:04:24,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:04:24,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:04:24,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-31 22:04:24,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 632 flow. Second operand has 17 states, 17 states have (on average 11.529411764705882) internal successors, (196), 17 states have internal predecessors, (196), 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) [2024-10-31 22:04:24,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:24,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-31 22:04:24,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:25,635 INFO L124 PetriNetUnfolderBase]: 758/2054 cut-off events. [2024-10-31 22:04:25,636 INFO L125 PetriNetUnfolderBase]: For 18092/18167 co-relation queries the response was YES. [2024-10-31 22:04:25,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8734 conditions, 2054 events. 758/2054 cut-off events. For 18092/18167 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12867 event pairs, 96 based on Foata normal form. 291/2293 useless extension candidates. Maximal degree in co-relation 7157. Up to 444 conditions per place. [2024-10-31 22:04:25,665 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 215 selfloop transitions, 28 changer transitions 0/255 dead transitions. [2024-10-31 22:04:25,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 255 transitions, 3026 flow [2024-10-31 22:04:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:04:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-31 22:04:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 248 transitions. [2024-10-31 22:04:25,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-10-31 22:04:25,667 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 632 flow. Second operand 16 states and 248 transitions. [2024-10-31 22:04:25,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 255 transitions, 3026 flow [2024-10-31 22:04:25,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 255 transitions, 2936 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:04:25,701 INFO L231 Difference]: Finished difference. Result has 98 places, 83 transitions, 830 flow [2024-10-31 22:04:25,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=830, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2024-10-31 22:04:25,703 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 73 predicate places. [2024-10-31 22:04:25,703 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 83 transitions, 830 flow [2024-10-31 22:04:25,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.529411764705882) internal successors, (196), 17 states have internal predecessors, (196), 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) [2024-10-31 22:04:25,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:25,705 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:25,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:04:25,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:25,910 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:25,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:25,910 INFO L85 PathProgramCache]: Analyzing trace with hash -40959491, now seen corresponding path program 5 times [2024-10-31 22:04:25,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:25,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380029873] [2024-10-31 22:04:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:25,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 130 proven. 287 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-10-31 22:04:26,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:26,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380029873] [2024-10-31 22:04:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380029873] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071554074] [2024-10-31 22:04:26,397 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:04:26,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:26,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:26,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:26,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:04:26,614 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-10-31 22:04:26,615 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:26,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:04:26,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 130 proven. 287 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-10-31 22:04:26,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 130 proven. 287 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-10-31 22:04:27,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071554074] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:27,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:27,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-31 22:04:27,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163492785] [2024-10-31 22:04:27,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:27,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-31 22:04:27,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:27,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-31 22:04:27,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:04:27,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-31 22:04:27,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 83 transitions, 830 flow. Second operand has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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) [2024-10-31 22:04:27,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:27,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-31 22:04:27,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:28,414 INFO L124 PetriNetUnfolderBase]: 1046/2822 cut-off events. [2024-10-31 22:04:28,415 INFO L125 PetriNetUnfolderBase]: For 42613/42724 co-relation queries the response was YES. [2024-10-31 22:04:28,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13754 conditions, 2822 events. 1046/2822 cut-off events. For 42613/42724 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 18742 event pairs, 120 based on Foata normal form. 273/3031 useless extension candidates. Maximal degree in co-relation 11228. Up to 630 conditions per place. [2024-10-31 22:04:28,473 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 299 selfloop transitions, 34 changer transitions 0/345 dead transitions. [2024-10-31 22:04:28,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 345 transitions, 4188 flow [2024-10-31 22:04:28,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 22:04:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-31 22:04:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 336 transitions. [2024-10-31 22:04:28,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-10-31 22:04:28,477 INFO L175 Difference]: Start difference. First operand has 98 places, 83 transitions, 830 flow. Second operand 22 states and 336 transitions. [2024-10-31 22:04:28,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 345 transitions, 4188 flow [2024-10-31 22:04:28,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 345 transitions, 4158 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:04:28,544 INFO L231 Difference]: Finished difference. Result has 121 places, 90 transitions, 1020 flow [2024-10-31 22:04:28,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1020, PETRI_PLACES=121, PETRI_TRANSITIONS=90} [2024-10-31 22:04:28,547 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 96 predicate places. [2024-10-31 22:04:28,547 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 90 transitions, 1020 flow [2024-10-31 22:04:28,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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) [2024-10-31 22:04:28,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:28,548 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:28,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:04:28,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:28,751 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:28,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,751 INFO L85 PathProgramCache]: Analyzing trace with hash 848696147, now seen corresponding path program 6 times [2024-10-31 22:04:28,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461133794] [2024-10-31 22:04:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 20 proven. 235 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2024-10-31 22:04:29,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:29,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461133794] [2024-10-31 22:04:29,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461133794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:29,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498226121] [2024-10-31 22:04:29,324 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-31 22:04:29,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:29,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:29,328 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:29,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:04:29,578 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-10-31 22:04:29,578 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:29,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:04:29,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:29,855 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 20 proven. 235 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2024-10-31 22:04:29,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 20 proven. 235 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2024-10-31 22:04:30,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498226121] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:30,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:30,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-10-31 22:04:30,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782750800] [2024-10-31 22:04:30,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:30,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-31 22:04:30,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-31 22:04:30,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:04:30,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-31 22:04:30,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 90 transitions, 1020 flow. Second operand has 23 states, 23 states have (on average 12.26086956521739) internal successors, (282), 23 states have internal predecessors, (282), 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) [2024-10-31 22:04:30,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:30,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-31 22:04:30,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:31,954 INFO L124 PetriNetUnfolderBase]: 1388/3809 cut-off events. [2024-10-31 22:04:31,955 INFO L125 PetriNetUnfolderBase]: For 99502/99742 co-relation queries the response was YES. [2024-10-31 22:04:32,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23200 conditions, 3809 events. 1388/3809 cut-off events. For 99502/99742 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 27467 event pairs, 44 based on Foata normal form. 232/4019 useless extension candidates. Maximal degree in co-relation 21859. Up to 1327 conditions per place. [2024-10-31 22:04:32,049 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 588 selfloop transitions, 66 changer transitions 0/663 dead transitions. [2024-10-31 22:04:32,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 663 transitions, 12386 flow [2024-10-31 22:04:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 22:04:32,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-31 22:04:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 339 transitions. [2024-10-31 22:04:32,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5707070707070707 [2024-10-31 22:04:32,053 INFO L175 Difference]: Start difference. First operand has 121 places, 90 transitions, 1020 flow. Second operand 22 states and 339 transitions. [2024-10-31 22:04:32,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 663 transitions, 12386 flow [2024-10-31 22:04:32,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 663 transitions, 11760 flow, removed 0 selfloop flow, removed 13 redundant places. [2024-10-31 22:04:32,207 INFO L231 Difference]: Finished difference. Result has 140 places, 123 transitions, 1534 flow [2024-10-31 22:04:32,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1534, PETRI_PLACES=140, PETRI_TRANSITIONS=123} [2024-10-31 22:04:32,208 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 115 predicate places. [2024-10-31 22:04:32,208 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 123 transitions, 1534 flow [2024-10-31 22:04:32,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.26086956521739) internal successors, (282), 23 states have internal predecessors, (282), 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) [2024-10-31 22:04:32,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:32,209 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:32,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:04:32,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:32,414 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:32,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1241951759, now seen corresponding path program 7 times [2024-10-31 22:04:32,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840082227] [2024-10-31 22:04:32,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:32,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:32,734 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:04:32,735 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-10-31 22:04:32,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-10-31 22:04:32,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-31 22:04:32,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:04:32,739 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2024-10-31 22:04:32,910 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:04:32,911 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:32,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:32 BasicIcfg [2024-10-31 22:04:32,924 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:32,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:32,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:32,925 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:32,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:19" (3/4) ... [2024-10-31 22:04:32,929 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:04:32,930 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:32,931 INFO L158 Benchmark]: Toolchain (without parser) took 16195.35ms. Allocated memory was 159.4MB in the beginning and 371.2MB in the end (delta: 211.8MB). Free memory was 118.1MB in the beginning and 207.9MB in the end (delta: -89.8MB). Peak memory consumption was 123.0MB. Max. memory is 16.1GB. [2024-10-31 22:04:32,931 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:32,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1234.55ms. Allocated memory is still 159.4MB. Free memory was 118.1MB in the beginning and 125.6MB in the end (delta: -7.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2024-10-31 22:04:32,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.07ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:32,935 INFO L158 Benchmark]: Boogie Preprocessor took 74.69ms. Allocated memory is still 159.4MB. Free memory was 123.6MB in the beginning and 120.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:32,935 INFO L158 Benchmark]: RCFGBuilder took 1086.03ms. Allocated memory is still 159.4MB. Free memory was 120.5MB in the beginning and 118.7MB in the end (delta: 1.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-10-31 22:04:32,935 INFO L158 Benchmark]: TraceAbstraction took 13671.05ms. Allocated memory was 159.4MB in the beginning and 371.2MB in the end (delta: 211.8MB). Free memory was 118.7MB in the beginning and 207.9MB in the end (delta: -89.2MB). Peak memory consumption was 122.6MB. Max. memory is 16.1GB. [2024-10-31 22:04:32,936 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 371.2MB. Free memory is still 207.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:32,938 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 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1234.55ms. Allocated memory is still 159.4MB. Free memory was 118.1MB in the beginning and 125.6MB in the end (delta: -7.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.07ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.69ms. Allocated memory is still 159.4MB. Free memory was 123.6MB in the beginning and 120.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1086.03ms. Allocated memory is still 159.4MB. Free memory was 120.5MB in the beginning and 118.7MB in the end (delta: 1.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13671.05ms. Allocated memory was 159.4MB in the beginning and 371.2MB in the end (delta: 211.8MB). Free memory was 118.7MB in the beginning and 207.9MB in the end (delta: -89.2MB). Peak memory consumption was 122.6MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 371.2MB. Free memory is still 207.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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] [L1324] 1 int i,j; [L1325] 1 i=0 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=40, myglobal=40, mythread=-1] [L1325] COND FALSE 1 !(i<20) [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, 32 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.4s, OverallIterations: 9, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 560 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 547 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 838 IncrementalHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1 mSDtfsCounter, 838 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 881 GetRequests, 778 SyntacticMatches, 12 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1534occurred in iteration=8, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 973 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 3229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1158 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 3439/5278 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 [2024-10-31 22:04:32,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:35,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:35,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 22:04:35,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:35,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:35,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:35,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:35,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:35,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:35,692 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:35,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:35,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:35,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:35,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:35,696 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:35,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:35,699 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:35,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:35,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:35,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:35,701 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:04:35,702 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:04:35,705 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:04:35,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:35,706 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:04:35,707 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:04:35,707 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:35,707 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:04:35,707 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:35,708 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:35,708 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:35,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:35,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:35,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:35,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:35,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:35,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:35,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:35,710 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:04:35,711 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:04:35,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:35,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:35,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:35,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:35,714 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:04:35,715 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-10-31 22:04:36,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:36,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:36,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:36,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:36,189 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:36,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i Unable to find full path for "g++" [2024-10-31 22:04:38,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:38,868 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:38,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-10-31 22:04:38,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data/3585bb6c5/23a47b3c4d9941e8901ce820e1b70b6a/FLAG7ad4fff18 [2024-10-31 22:04:39,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/data/3585bb6c5/23a47b3c4d9941e8901ce820e1b70b6a [2024-10-31 22:04:39,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:39,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:39,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:39,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:39,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:39,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:39" (1/1) ... [2024-10-31 22:04:39,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a248f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:39, skipping insertion in model container [2024-10-31 22:04:39,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:39" (1/1) ... [2024-10-31 22:04:39,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:40,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:40,218 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:40,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:40,419 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:40,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40 WrapperNode [2024-10-31 22:04:40,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:40,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:40,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:40,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:40,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,515 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2024-10-31 22:04:40,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:40,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:40,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:40,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:40,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,565 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:04:40,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:40,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:40,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:40,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:40,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (1/1) ... [2024-10-31 22:04:40,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:40,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:40,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:40,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:04:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:04:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:04:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-10-31 22:04:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-10-31 22:04:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:40,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:40,687 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:04:40,901 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:40,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:41,158 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:41,159 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:41,743 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:41,744 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:04:41,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:41 BoogieIcfgContainer [2024-10-31 22:04:41,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:41,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:41,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:41,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:41,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:39" (1/3) ... [2024-10-31 22:04:41,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550638b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:41, skipping insertion in model container [2024-10-31 22:04:41,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:40" (2/3) ... [2024-10-31 22:04:41,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550638b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:41, skipping insertion in model container [2024-10-31 22:04:41,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:41" (3/3) ... [2024-10-31 22:04:41,755 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-10-31 22:04:41,775 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:41,776 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:04:41,776 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:41,818 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:04:41,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 27 transitions, 61 flow [2024-10-31 22:04:41,898 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-10-31 22:04:41,901 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:41,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 4/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-10-31 22:04:41,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 27 transitions, 61 flow [2024-10-31 22:04:41,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 25 transitions, 56 flow [2024-10-31 22:04:41,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:41,932 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=PETRI_NET, 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;@671e6d74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:41,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-31 22:04:41,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:41,948 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-10-31 22:04:41,948 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:41,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:41,949 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:41,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:41,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash -260513820, now seen corresponding path program 1 times [2024-10-31 22:04:41,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:41,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435891396] [2024-10-31 22:04:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:41,972 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 [2024-10-31 22:04:41,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:41,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:04:41,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:42,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:04:42,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:42,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:42,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:04:42,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435891396] [2024-10-31 22:04:42,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435891396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:42,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:42,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:42,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122666076] [2024-10-31 22:04:42,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:42,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:04:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:04:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:04:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:04:42,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-10-31 22:04:42,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-10-31 22:04:42,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:42,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-10-31 22:04:42,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:42,354 INFO L124 PetriNetUnfolderBase]: 13/40 cut-off events. [2024-10-31 22:04:42,356 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:42,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 40 events. 13/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 83 event pairs, 6 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 56. Up to 30 conditions per place. [2024-10-31 22:04:42,358 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2024-10-31 22:04:42,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 70 flow [2024-10-31 22:04:42,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:04:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:04:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2024-10-31 22:04:42,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2024-10-31 22:04:42,372 INFO L175 Difference]: Start difference. First operand has 25 places, 25 transitions, 56 flow. Second operand 2 states and 35 transitions. [2024-10-31 22:04:42,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 70 flow [2024-10-31 22:04:42,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:42,378 INFO L231 Difference]: Finished difference. Result has 21 places, 19 transitions, 40 flow [2024-10-31 22:04:42,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=19} [2024-10-31 22:04:42,385 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -4 predicate places. [2024-10-31 22:04:42,385 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 19 transitions, 40 flow [2024-10-31 22:04:42,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-10-31 22:04:42,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:42,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:42,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:42,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:42,587 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:42,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash -352682509, now seen corresponding path program 1 times [2024-10-31 22:04:42,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:42,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891817894] [2024-10-31 22:04:42,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:42,590 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 [2024-10-31 22:04:42,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:42,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:04:42,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:42,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:04:42,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:42,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:42,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:42,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:04:42,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891817894] [2024-10-31 22:04:42,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891817894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:42,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:42,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:42,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473929748] [2024-10-31 22:04:42,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:42,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:04:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:42,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-10-31 22:04:42,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 19 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:42,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:42,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-10-31 22:04:42,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:42,864 INFO L124 PetriNetUnfolderBase]: 17/55 cut-off events. [2024-10-31 22:04:42,865 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:42,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 55 events. 17/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 4 based on Foata normal form. 4/56 useless extension candidates. Maximal degree in co-relation 93. Up to 30 conditions per place. [2024-10-31 22:04:42,867 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 15 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2024-10-31 22:04:42,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 24 transitions, 84 flow [2024-10-31 22:04:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-10-31 22:04:42,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-10-31 22:04:42,871 INFO L175 Difference]: Start difference. First operand has 21 places, 19 transitions, 40 flow. Second operand 3 states and 48 transitions. [2024-10-31 22:04:42,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 24 transitions, 84 flow [2024-10-31 22:04:42,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 84 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:42,873 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 52 flow [2024-10-31 22:04:42,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-10-31 22:04:42,875 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-10-31 22:04:42,875 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 52 flow [2024-10-31 22:04:42,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:42,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:42,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:42,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:04:43,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:43,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:43,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:43,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1191429173, now seen corresponding path program 1 times [2024-10-31 22:04:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:43,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719769199] [2024-10-31 22:04:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:43,082 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 [2024-10-31 22:04:43,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:43,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:04:43,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:43,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:04:43,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:43,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:43,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:04:43,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719769199] [2024-10-31 22:04:43,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719769199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:43,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:43,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243915851] [2024-10-31 22:04:43,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:43,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:43,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:04:43,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:43,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:43,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 27 [2024-10-31 22:04:43,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-31 22:04:43,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:43,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 27 [2024-10-31 22:04:43,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:43,385 INFO L124 PetriNetUnfolderBase]: 25/82 cut-off events. [2024-10-31 22:04:43,385 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-31 22:04:43,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 82 events. 25/82 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 224 event pairs, 9 based on Foata normal form. 4/82 useless extension candidates. Maximal degree in co-relation 166. Up to 38 conditions per place. [2024-10-31 22:04:43,387 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 17 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-10-31 22:04:43,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 26 transitions, 112 flow [2024-10-31 22:04:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:43,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:43,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-10-31 22:04:43,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-10-31 22:04:43,390 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 52 flow. Second operand 3 states and 48 transitions. [2024-10-31 22:04:43,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 26 transitions, 112 flow [2024-10-31 22:04:43,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:43,392 INFO L231 Difference]: Finished difference. Result has 25 places, 21 transitions, 62 flow [2024-10-31 22:04:43,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=25, PETRI_TRANSITIONS=21} [2024-10-31 22:04:43,393 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-10-31 22:04:43,393 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 62 flow [2024-10-31 22:04:43,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-31 22:04:43,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:43,395 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:43,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:04:43,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:04:43,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-31 22:04:43,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2069577606, now seen corresponding path program 1 times [2024-10-31 22:04:43,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792031643] [2024-10-31 22:04:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:43,598 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 [2024-10-31 22:04:43,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:43,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:04:43,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d96795e9-cc48-42bd-92e0-f4062c76d68c/bin/uautomizer-verify-4GaUIPS5ZU/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 (5)] Waiting until timeout for monitored process [2024-10-31 22:04:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:43,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:04:43,756 INFO L278 TraceCheckSpWp]: Computing forward predicates...