./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1 --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 9053cd9eb87a8824d68da81e817a5c2746c138459aecfddcec40af107177afcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 22:58:41,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 22:58:41,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-01 22:58:41,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 22:58:41,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 22:58:41,151 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 22:58:41,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 22:58:41,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 22:58:41,152 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 22:58:41,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 22:58:41,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 22:58:41,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 22:58:41,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 22:58:41,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 22:58:41,153 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 22:58:41,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 22:58:41,153 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 22:58:41,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 22:58:41,155 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 22:58:41,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:58:41,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:58:41,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 22:58:41,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 22:58:41,157 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 22:58:41,157 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 22:58:41,157 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 22:58:41,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 22:58:41,157 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1 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 -> 9053cd9eb87a8824d68da81e817a5c2746c138459aecfddcec40af107177afcb [2024-12-01 22:58:41,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 22:58:41,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 22:58:41,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 22:58:41,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 22:58:41,408 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 22:58:41,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2024-12-01 22:58:44,742 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/data/3bbe4c444/b884618c71354883b02fd2b54ffb2fed/FLAG79d52c804 [2024-12-01 22:58:44,951 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 22:58:44,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2024-12-01 22:58:44,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/data/3bbe4c444/b884618c71354883b02fd2b54ffb2fed/FLAG79d52c804 [2024-12-01 22:58:45,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/data/3bbe4c444/b884618c71354883b02fd2b54ffb2fed [2024-12-01 22:58:45,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 22:58:45,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 22:58:45,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 22:58:45,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 22:58:45,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 22:58:45,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63590f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45, skipping insertion in model container [2024-12-01 22:58:45,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 22:58:45,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 22:58:45,515 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 22:58:45,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 22:58:45,571 INFO L204 MainTranslator]: Completed translation [2024-12-01 22:58:45,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45 WrapperNode [2024-12-01 22:58:45,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 22:58:45,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 22:58:45,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 22:58:45,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 22:58:45,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,623 INFO L138 Inliner]: procedures = 24, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 302 [2024-12-01 22:58:45,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 22:58:45,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 22:58:45,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 22:58:45,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 22:58:45,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,658 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]. [2024-12-01 22:58:45,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,666 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 22:58:45,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 22:58:45,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 22:58:45,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 22:58:45,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (1/1) ... [2024-12-01 22:58:45,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:58:45,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:45,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 22:58:45,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33bef69f-d8f6-47fe-b862-0b2c8f9c63ed/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 22:58:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 22:58:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-01 22:58:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-01 22:58:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-01 22:58:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-01 22:58:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-01 22:58:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-01 22:58:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-12-01 22:58:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-12-01 22:58:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 22:58:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-12-01 22:58:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-12-01 22:58:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-12-01 22:58:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-12-01 22:58:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2024-12-01 22:58:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2024-12-01 22:58:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2024-12-01 22:58:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2024-12-01 22:58:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 22:58:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 22:58:45,747 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-01 22:58:45,864 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 22:58:45,866 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 22:58:46,304 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 22:58:46,304 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 22:58:46,584 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 22:58:46,585 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 22:58:46,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:58:46 BoogieIcfgContainer [2024-12-01 22:58:46,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 22:58:46,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 22:58:46,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 22:58:46,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 22:58:46,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:58:45" (1/3) ... [2024-12-01 22:58:46,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57aa0a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:58:46, skipping insertion in model container [2024-12-01 22:58:46,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:45" (2/3) ... [2024-12-01 22:58:46,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57aa0a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:58:46, skipping insertion in model container [2024-12-01 22:58:46,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:58:46" (3/3) ... [2024-12-01 22:58:46,596 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2024-12-01 22:58:46,616 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 22:58:46,618 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-8.wvr.c that has 9 procedures, 103 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-01 22:58:46,618 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 22:58:46,726 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-12-01 22:58:46,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 109 transitions, 274 flow [2024-12-01 22:58:46,832 INFO L124 PetriNetUnfolderBase]: 7/101 cut-off events. [2024-12-01 22:58:46,834 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-12-01 22:58:46,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 101 events. 7/101 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 218 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-12-01 22:58:46,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 109 transitions, 274 flow [2024-12-01 22:58:46,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 100 transitions, 248 flow [2024-12-01 22:58:46,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 22:58:46,862 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;@495c0444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 22:58:46,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-12-01 22:58:46,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 22:58:46,894 INFO L124 PetriNetUnfolderBase]: 7/97 cut-off events. [2024-12-01 22:58:46,894 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-12-01 22:58:46,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:46,895 INFO L206 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, 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] [2024-12-01 22:58:46,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2024-12-01 22:58:46,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:46,902 INFO L85 PathProgramCache]: Analyzing trace with hash -375996478, now seen corresponding path program 1 times [2024-12-01 22:58:46,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:46,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152354432] [2024-12-01 22:58:46,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:46,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:47,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:47,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152354432] [2024-12-01 22:58:47,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152354432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:47,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:47,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:58:47,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690534926] [2024-12-01 22:58:47,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:47,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 22:58:47,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:47,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 22:58:47,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 22:58:47,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 109 [2024-12-01 22:58:47,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 100 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2024-12-01 22:58:47,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:47,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 109 [2024-12-01 22:58:47,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand