./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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-ticket-7.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 a23e058fd7e99c388c57a29154ab8770cf868cf3c645eba0bb26fd121678d7da --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:38:08,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:38:08,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:38:08,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:38:08,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:38:08,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:38:08,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:38:08,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:38:08,164 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:38:08,165 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:38:08,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:38:08,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:38:08,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:38:08,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:38:08,165 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:38:08,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:38:08,165 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:38:08,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:38:08,166 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:38:08,167 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:38:08,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:38:08,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:38:08,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:38:08,168 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 -> a23e058fd7e99c388c57a29154ab8770cf868cf3c645eba0bb26fd121678d7da [2025-02-08 08:38:08,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:38:08,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:38:08,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:38:08,435 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:38:08,435 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:38:08,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2025-02-08 08:38:09,621 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b9bc76bd/d61d93aa28d44ab18ff11e2a055b0d51/FLAG6da449d3c [2025-02-08 08:38:09,822 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:38:09,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2025-02-08 08:38:09,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b9bc76bd/d61d93aa28d44ab18ff11e2a055b0d51/FLAG6da449d3c [2025-02-08 08:38:09,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b9bc76bd/d61d93aa28d44ab18ff11e2a055b0d51 [2025-02-08 08:38:09,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:38:09,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:38:09,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:38:09,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:38:09,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:38:09,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:38:09" (1/1) ... [2025-02-08 08:38:09,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7783aab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:09, skipping insertion in model container [2025-02-08 08:38:09,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:38:09" (1/1) ... [2025-02-08 08:38:09,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:38:10,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:38:10,049 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:38:10,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:38:10,082 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:38:10,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10 WrapperNode [2025-02-08 08:38:10,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:38:10,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:38:10,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:38:10,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:38:10,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,121 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 270 [2025-02-08 08:38:10,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:38:10,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:38:10,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:38:10,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:38:10,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,156 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]. [2025-02-08 08:38:10,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,165 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:38:10,173 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:38:10,173 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:38:10,173 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:38:10,174 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (1/1) ... [2025-02-08 08:38:10,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:38:10,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:38:10,210 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) [2025-02-08 08:38:10,212 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 [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:38:10,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:38:10,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 08:38:10,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-08 08:38:10,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:38:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-08 08:38:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-08 08:38:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-08 08:38:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-08 08:38:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-02-08 08:38:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-02-08 08:38:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:38:10,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:38:10,233 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:38:10,311 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:38:10,312 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:38:10,650 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:38:10,650 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:38:10,822 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:38:10,822 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:38:10,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:38:10 BoogieIcfgContainer [2025-02-08 08:38:10,822 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:38:10,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:38:10,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:38:10,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:38:10,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:38:09" (1/3) ... [2025-02-08 08:38:10,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec20bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:38:10, skipping insertion in model container [2025-02-08 08:38:10,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:10" (2/3) ... [2025-02-08 08:38:10,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec20bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:38:10, skipping insertion in model container [2025-02-08 08:38:10,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:38:10" (3/3) ... [2025-02-08 08:38:10,832 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2025-02-08 08:38:10,843 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:38:10,846 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-7.wvr.c that has 8 procedures, 92 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:38:10,846 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:38:10,927 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2025-02-08 08:38:10,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 97 transitions, 243 flow [2025-02-08 08:38:11,005 INFO L124 PetriNetUnfolderBase]: 6/90 cut-off events. [2025-02-08 08:38:11,007 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 08:38:11,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 90 events. 6/90 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 190 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2025-02-08 08:38:11,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 97 transitions, 243 flow [2025-02-08 08:38:11,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 89 transitions, 220 flow [2025-02-08 08:38:11,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:38:11,033 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;@17507325, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:38:11,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-02-08 08:38:11,086 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:38:11,086 INFO L124 PetriNetUnfolderBase]: 6/86 cut-off events. [2025-02-08 08:38:11,086 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 08:38:11,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:11,087 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] [2025-02-08 08:38:11,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-08 08:38:11,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:11,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1398138049, now seen corresponding path program 1 times [2025-02-08 08:38:11,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:11,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960010281] [2025-02-08 08:38:11,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:38:11,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:11,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 08:38:11,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 08:38:11,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:38:11,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:11,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:11,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960010281] [2025-02-08 08:38:11,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960010281] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:11,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:11,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:38:11,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949763939] [2025-02-08 08:38:11,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:11,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:38:11,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:11,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:38:11,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:38:11,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 97 [2025-02-08 08:38:11,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 89 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 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) [2025-02-08 08:38:11,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:11,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 97 [2025-02-08 08:38:11,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand