./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/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_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/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_e91c59ae-12dc-487a-83c8-0b16283aedc3/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 f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:11:07,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:11:07,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:11:07,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:11:07,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:11:07,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:11:07,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:11:07,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:11:07,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:11:07,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:11:07,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:11:07,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:11:07,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:11:07,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:11:07,583 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:11:07,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:11:07,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:11:07,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:11:07,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:11:07,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:11:07,585 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:11:07,590 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:11:07,590 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:11:07,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:11:07,591 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:11:07,591 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:11:07,592 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:11:07,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:11:07,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:11:07,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:11:07,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:11:07,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:11:07,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:11:07,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:07,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:11:07,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:11:07,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:11:07,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:11:07,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:11:07,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:11:07,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:11:07,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:11:07,602 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_e91c59ae-12dc-487a-83c8-0b16283aedc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 [2024-10-31 22:11:07,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:11:07,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:11:07,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:11:07,916 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:11:07,917 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:11:07,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c Unable to find full path for "g++" [2024-10-31 22:11:10,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:11:10,361 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:11:10,362 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-10-31 22:11:10,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/data/fb332ee12/accd3c9ed62149438a46a6cbba4fcaf3/FLAGf17a24092 [2024-10-31 22:11:10,418 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/data/fb332ee12/accd3c9ed62149438a46a6cbba4fcaf3 [2024-10-31 22:11:10,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:11:10,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:11:10,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:10,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:11:10,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:11:10,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1949393a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10, skipping insertion in model container [2024-10-31 22:11:10,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,486 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:11:10,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:10,721 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:11:10,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:10,768 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:11:10,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10 WrapperNode [2024-10-31 22:11:10,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:10,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:10,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:11:10,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:11:10,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,820 INFO L138 Inliner]: procedures = 23, calls = 61, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 224 [2024-10-31 22:11:10,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:10,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:11:10,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:11:10,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:11:10,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,870 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 22:11:10,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:11:10,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:11:10,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:11:10,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:11:10,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (1/1) ... [2024-10-31 22:11:10,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:10,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:11:10,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91c59ae-12dc-487a-83c8-0b16283aedc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:11:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:11:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:11:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:11:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:11:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:11:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:11:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:11:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 22:11:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 22:11:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:11:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-31 22:11:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-31 22:11:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:11:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:11:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:11:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:11:10,969 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 22:11:11,078 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:11:11,080 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:11:11,406 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:11:11,406 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:11:11,755 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:11:11,755 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:11:11,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:11 BoogieIcfgContainer [2024-10-31 22:11:11,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:11:11,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:11:11,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:11:11,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:11:11,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:11:10" (1/3) ... [2024-10-31 22:11:11,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c563ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:11, skipping insertion in model container [2024-10-31 22:11:11,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:10" (2/3) ... [2024-10-31 22:11:11,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c563ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:11, skipping insertion in model container [2024-10-31 22:11:11,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:11" (3/3) ... [2024-10-31 22:11:11,767 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-10-31 22:11:11,786 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:11:11,786 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:11:11,786 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:11:11,854 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-10-31 22:11:11,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 57 transitions, 149 flow [2024-10-31 22:11:11,967 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2024-10-31 22:11:11,967 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:11:11,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 52 events. 0/52 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:11:11,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 57 transitions, 149 flow [2024-10-31 22:11:11,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 51 transitions, 132 flow [2024-10-31 22:11:11,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:11:12,004 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;@4a33ef7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:11:12,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:11:12,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:11:12,048 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-10-31 22:11:12,049 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:11:12,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:12,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:12,050 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:11:12,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -217554165, now seen corresponding path program 1 times [2024-10-31 22:11:12,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:12,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660543769] [2024-10-31 22:11:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:12,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:13,922 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 22:11:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660543769] [2024-10-31 22:11:13,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660543769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:13,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:13,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:11:13,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494152528] [2024-10-31 22:11:13,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:13,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:11:13,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:11:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:11:14,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 57 [2024-10-31 22:11:14,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 51 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 22:11:14,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:14,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 57 [2024-10-31 22:11:14,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:29,215 INFO L124 PetriNetUnfolderBase]: 127801/164288 cut-off events. [2024-10-31 22:11:29,215 INFO L125 PetriNetUnfolderBase]: For 9324/9324 co-relation queries the response was YES. [2024-10-31 22:11:29,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336778 conditions, 164288 events. 127801/164288 cut-off events. For 9324/9324 co-relation queries the response was YES. Maximal size of possible extension queue 4493. Compared 974559 event pairs, 78492 based on Foata normal form. 2/164081 useless extension candidates. Maximal degree in co-relation 308623. Up to 92016 conditions per place. [2024-10-31 22:11:30,001 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 93 selfloop transitions, 6 changer transitions 8/113 dead transitions. [2024-10-31 22:11:30,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 113 transitions, 506 flow [2024-10-31 22:11:30,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:11:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:11:30,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-10-31 22:11:30,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6885964912280702 [2024-10-31 22:11:30,019 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 132 flow. Second operand 4 states and 157 transitions. [2024-10-31 22:11:30,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 113 transitions, 506 flow [2024-10-31 22:11:31,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 462 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-31 22:11:31,567 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 147 flow [2024-10-31 22:11:31,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2024-10-31 22:11:31,573 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, -7 predicate places. [2024-10-31 22:11:31,573 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 147 flow [2024-10-31 22:11:31,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 22:11:31,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:31,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:31,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:11:31,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:11:31,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1834087471, now seen corresponding path program 2 times [2024-10-31 22:11:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370383541] [2024-10-31 22:11:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:31,777 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 22:11:31,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:31,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370383541] [2024-10-31 22:11:31,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370383541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:31,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:31,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:31,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426807747] [2024-10-31 22:11:31,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:31,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:11:31,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:31,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:11:31,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57 [2024-10-31 22:11:31,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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 22:11:31,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:31,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57 [2024-10-31 22:11:31,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand