./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:05:45,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:05:45,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 01:05:45,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:05:45,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:05:45,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:05:45,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:05:45,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:05:45,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:05:45,567 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:05:45,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:05:45,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:05:45,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:05:45,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:05:45,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 01:05:45,569 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:05:45,570 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:05:45,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:05:45,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:05:45,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:05:45,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:05:45,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:05:45,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:05:45,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:05:45,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:05:45,572 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2025-01-10 01:05:45,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:05:45,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:05:45,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:05:45,797 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:05:45,797 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:05:45,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2025-01-10 01:05:46,987 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/317f3bf61/4879232f752048fa96f613cebc933ba7/FLAG969e828cd [2025-01-10 01:05:47,253 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:05:47,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2025-01-10 01:05:47,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/317f3bf61/4879232f752048fa96f613cebc933ba7/FLAG969e828cd [2025-01-10 01:05:47,561 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/317f3bf61/4879232f752048fa96f613cebc933ba7 [2025-01-10 01:05:47,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:05:47,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:05:47,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:05:47,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:05:47,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:05:47,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60592373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47, skipping insertion in model container [2025-01-10 01:05:47,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:05:47,787 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 01:05:47,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:05:47,800 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:05:47,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:05:47,830 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:05:47,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47 WrapperNode [2025-01-10 01:05:47,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:05:47,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:05:47,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:05:47,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:05:47,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,858 INFO L138 Inliner]: procedures = 28, calls = 66, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 294 [2025-01-10 01:05:47,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:05:47,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:05:47,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:05:47,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:05:47,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,869 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,891 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-01-10 01:05:47,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,901 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:05:47,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:05:47,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:05:47,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:05:47,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (1/1) ... [2025-01-10 01:05:47,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:05:47,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:05:47,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 01:05:47,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 01:05:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 01:05:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 01:05:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 01:05:47,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:05:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:05:47,988 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 01:05:48,101 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:05:48,103 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:05:48,514 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 01:05:48,514 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:05:48,738 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:05:48,739 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-01-10 01:05:48,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:05:48 BoogieIcfgContainer [2025-01-10 01:05:48,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:05:48,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:05:48,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:05:48,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:05:48,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:05:47" (1/3) ... [2025-01-10 01:05:48,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c8e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:05:48, skipping insertion in model container [2025-01-10 01:05:48,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:05:47" (2/3) ... [2025-01-10 01:05:48,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c8e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:05:48, skipping insertion in model container [2025-01-10 01:05:48,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:05:48" (3/3) ... [2025-01-10 01:05:48,745 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2025-01-10 01:05:48,756 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:05:48,757 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1-dsl.wvr.c that has 7 procedures, 79 locations, 1 initial locations, 5 loop locations, and 12 error locations. [2025-01-10 01:05:48,757 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 01:05:48,830 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-01-10 01:05:48,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 97 transitions, 260 flow [2025-01-10 01:05:48,875 INFO L124 PetriNetUnfolderBase]: 13/85 cut-off events. [2025-01-10 01:05:48,876 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-01-10 01:05:48,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 85 events. 13/85 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 243 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 89. Up to 3 conditions per place. [2025-01-10 01:05:48,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 97 transitions, 260 flow [2025-01-10 01:05:48,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 84 transitions, 216 flow [2025-01-10 01:05:48,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:05:48,894 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;@5b58ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:05:48,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2025-01-10 01:05:48,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 01:05:48,897 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2025-01-10 01:05:48,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 01:05:48,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:05:48,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 01:05:48,897 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2025-01-10 01:05:48,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:05:48,901 INFO L85 PathProgramCache]: Analyzing trace with hash 979886, now seen corresponding path program 1 times [2025-01-10 01:05:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:05:48,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285407539] [2025-01-10 01:05:48,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:05:48,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:05:48,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 01:05:48,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 01:05:48,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:05:48,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:05:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:05:49,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:05:49,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285407539] [2025-01-10 01:05:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285407539] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:05:49,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:05:49,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 01:05:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176433555] [2025-01-10 01:05:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:05:49,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:05:49,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:05:49,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:05:49,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:05:49,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 101 [2025-01-10 01:05:49,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-01-10 01:05:49,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:05:49,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 101 [2025-01-10 01:05:49,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand