./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:35:24,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:35:24,874 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:35:24,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:35:24,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:35:24,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:35:24,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:35:24,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:35:24,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:35:24,915 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:35:24,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:35:24,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:35:24,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:35:24,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:35:24,918 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:35:24,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:35:24,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:35:24,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:35:24,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:35:24,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:35:24,919 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:35:24,922 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:35:24,922 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:35:24,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:35:24,922 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:35:24,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:35:24,922 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:35:24,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:35:24,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:35:24,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:35:24,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:35:24,923 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:35:24,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:35:24,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:35:24,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:35:24,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:35:24,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:35:24,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:35:24,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:35:24,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:35:24,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:35:24,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:35:24,926 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2024-11-19 09:35:25,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:35:25,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:35:25,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:35:25,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:35:25,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:35:25,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-19 09:35:26,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:35:26,603 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:35:26,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-19 09:35:26,617 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ba15983/8113f228b31248b29b0c1ce6d5139c36/FLAG2e9cc6c31 [2024-11-19 09:35:26,630 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ba15983/8113f228b31248b29b0c1ce6d5139c36 [2024-11-19 09:35:26,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:35:26,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:35:26,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:35:26,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:35:26,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:35:26,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db1c388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:26, skipping insertion in model container [2024-11-19 09:35:26,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:35:26" (1/1) ... [2024-11-19 09:35:26,684 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:35:26,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:35:27,004 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:35:27,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:35:27,072 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:35:27,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27 WrapperNode [2024-11-19 09:35:27,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:35:27,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:35:27,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:35:27,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:35:27,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,112 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-19 09:35:27,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:35:27,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:35:27,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:35:27,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:35:27,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,147 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]. [2024-11-19 09:35:27,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:35:27,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:35:27,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:35:27,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:35:27,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (1/1) ... [2024-11-19 09:35:27,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:35:27,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:35:27,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 09:35:27,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 09:35:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:35:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:35:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 09:35:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 09:35:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 09:35:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 09:35:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 09:35:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 09:35:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 09:35:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 09:35:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:35:27,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:35:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:35:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:35:27,242 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:35:27,371 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:35:27,373 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:35:27,503 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:35:27,504 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:35:27,630 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:35:27,630 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:35:27,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:35:27 BoogieIcfgContainer [2024-11-19 09:35:27,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:35:27,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:35:27,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:35:27,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:35:27,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:35:26" (1/3) ... [2024-11-19 09:35:27,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525606c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:35:27, skipping insertion in model container [2024-11-19 09:35:27,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:35:27" (2/3) ... [2024-11-19 09:35:27,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525606c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:35:27, skipping insertion in model container [2024-11-19 09:35:27,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:35:27" (3/3) ... [2024-11-19 09:35:27,640 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-19 09:35:27,655 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:35:27,655 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:35:27,655 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:35:27,695 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:35:27,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 120 flow [2024-11-19 09:35:27,750 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-11-19 09:35:27,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:27,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 2/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2024-11-19 09:35:27,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 52 transitions, 120 flow [2024-11-19 09:35:27,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 47 transitions, 106 flow [2024-11-19 09:35:27,764 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:35:27,769 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;@55b3f7a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:35:27,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 09:35:27,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:35:27,781 INFO L124 PetriNetUnfolderBase]: 2/45 cut-off events. [2024-11-19 09:35:27,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:27,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:27,786 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:27,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:27,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:27,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1656970472, now seen corresponding path program 1 times [2024-11-19 09:35:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:27,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442934791] [2024-11-19 09:35:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:28,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:28,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442934791] [2024-11-19 09:35:28,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442934791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:28,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:28,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:35:28,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580148641] [2024-11-19 09:35:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:28,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:35:28,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:28,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:35:28,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:35:28,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 52 [2024-11-19 09:35:28,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 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) [2024-11-19 09:35:28,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:28,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 52 [2024-11-19 09:35:28,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:28,245 INFO L124 PetriNetUnfolderBase]: 211/507 cut-off events. [2024-11-19 09:35:28,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:28,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 507 events. 211/507 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3151 event pairs, 211 based on Foata normal form. 48/514 useless extension candidates. Maximal degree in co-relation 867. Up to 336 conditions per place. [2024-11-19 09:35:28,252 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 15 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-11-19 09:35:28,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 132 flow [2024-11-19 09:35:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:35:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:35:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-11-19 09:35:28,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2024-11-19 09:35:28,264 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 106 flow. Second operand 3 states and 110 transitions. [2024-11-19 09:35:28,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 132 flow [2024-11-19 09:35:28,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:35:28,269 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-11-19 09:35:28,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-19 09:35:28,274 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2024-11-19 09:35:28,275 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-11-19 09:35:28,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 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) [2024-11-19 09:35:28,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:28,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:28,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:35:28,276 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:28,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:28,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1656971759, now seen corresponding path program 1 times [2024-11-19 09:35:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131995983] [2024-11-19 09:35:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:28,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131995983] [2024-11-19 09:35:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131995983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:28,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:28,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:35:28,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927473950] [2024-11-19 09:35:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:28,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:35:28,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:28,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:35:28,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:35:28,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-11-19 09:35:28,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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) [2024-11-19 09:35:28,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:28,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-11-19 09:35:28,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:29,070 INFO L124 PetriNetUnfolderBase]: 2120/3783 cut-off events. [2024-11-19 09:35:29,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:35:29,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 3783 events. 2120/3783 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 26966 event pairs, 972 based on Foata normal form. 0/3530 useless extension candidates. Maximal degree in co-relation 6866. Up to 1893 conditions per place. [2024-11-19 09:35:29,099 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 28 selfloop transitions, 5 changer transitions 38/91 dead transitions. [2024-11-19 09:35:29,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 91 transitions, 340 flow [2024-11-19 09:35:29,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:35:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:35:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 273 transitions. [2024-11-19 09:35:29,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65625 [2024-11-19 09:35:29,105 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 273 transitions. [2024-11-19 09:35:29,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 91 transitions, 340 flow [2024-11-19 09:35:29,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:35:29,109 INFO L231 Difference]: Finished difference. Result has 64 places, 45 transitions, 148 flow [2024-11-19 09:35:29,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=148, PETRI_PLACES=64, PETRI_TRANSITIONS=45} [2024-11-19 09:35:29,110 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2024-11-19 09:35:29,110 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 148 flow [2024-11-19 09:35:29,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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) [2024-11-19 09:35:29,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:29,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:29,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:35:29,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:29,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2100473072, now seen corresponding path program 1 times [2024-11-19 09:35:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:29,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222914552] [2024-11-19 09:35:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:29,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:29,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:29,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222914552] [2024-11-19 09:35:29,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222914552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:29,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:29,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:35:29,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977049882] [2024-11-19 09:35:29,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:29,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:35:29,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:29,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:35:29,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:35:29,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 52 [2024-11-19 09:35:29,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 45 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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) [2024-11-19 09:35:29,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:29,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 52 [2024-11-19 09:35:29,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:29,515 INFO L124 PetriNetUnfolderBase]: 1072/2277 cut-off events. [2024-11-19 09:35:29,516 INFO L125 PetriNetUnfolderBase]: For 1890/2062 co-relation queries the response was YES. [2024-11-19 09:35:29,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5515 conditions, 2277 events. 1072/2277 cut-off events. For 1890/2062 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 17684 event pairs, 394 based on Foata normal form. 78/2145 useless extension candidates. Maximal degree in co-relation 5503. Up to 712 conditions per place. [2024-11-19 09:35:29,531 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 21 selfloop transitions, 3 changer transitions 19/69 dead transitions. [2024-11-19 09:35:29,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 69 transitions, 304 flow [2024-11-19 09:35:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:35:29,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:35:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-11-19 09:35:29,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6593406593406593 [2024-11-19 09:35:29,536 INFO L175 Difference]: Start difference. First operand has 64 places, 45 transitions, 148 flow. Second operand 7 states and 240 transitions. [2024-11-19 09:35:29,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 69 transitions, 304 flow [2024-11-19 09:35:29,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 291 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-19 09:35:29,554 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 158 flow [2024-11-19 09:35:29,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=158, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2024-11-19 09:35:29,555 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2024-11-19 09:35:29,556 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 158 flow [2024-11-19 09:35:29,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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) [2024-11-19 09:35:29,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:29,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:29,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:35:29,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:29,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:29,558 INFO L85 PathProgramCache]: Analyzing trace with hash 251497278, now seen corresponding path program 1 times [2024-11-19 09:35:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:29,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882768714] [2024-11-19 09:35:29,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:29,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:29,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882768714] [2024-11-19 09:35:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882768714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:29,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:29,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:35:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514075378] [2024-11-19 09:35:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:29,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:29,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:29,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:29,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:29,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 52 [2024-11-19 09:35:29,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-19 09:35:29,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:29,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 52 [2024-11-19 09:35:29,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:29,998 INFO L124 PetriNetUnfolderBase]: 1354/2584 cut-off events. [2024-11-19 09:35:29,998 INFO L125 PetriNetUnfolderBase]: For 3051/3249 co-relation queries the response was YES. [2024-11-19 09:35:30,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6534 conditions, 2584 events. 1354/2584 cut-off events. For 3051/3249 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 19089 event pairs, 406 based on Foata normal form. 74/2457 useless extension candidates. Maximal degree in co-relation 6518. Up to 542 conditions per place. [2024-11-19 09:35:30,015 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 27 selfloop transitions, 3 changer transitions 24/79 dead transitions. [2024-11-19 09:35:30,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 79 transitions, 365 flow [2024-11-19 09:35:30,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:35:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:35:30,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2024-11-19 09:35:30,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6514423076923077 [2024-11-19 09:35:30,016 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 158 flow. Second operand 8 states and 271 transitions. [2024-11-19 09:35:30,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 79 transitions, 365 flow [2024-11-19 09:35:30,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 79 transitions, 341 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-19 09:35:30,036 INFO L231 Difference]: Finished difference. Result has 69 places, 44 transitions, 161 flow [2024-11-19 09:35:30,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=161, PETRI_PLACES=69, PETRI_TRANSITIONS=44} [2024-11-19 09:35:30,037 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2024-11-19 09:35:30,037 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 161 flow [2024-11-19 09:35:30,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-19 09:35:30,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:30,037 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] [2024-11-19 09:35:30,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:35:30,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:30,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:30,038 INFO L85 PathProgramCache]: Analyzing trace with hash -677041637, now seen corresponding path program 1 times [2024-11-19 09:35:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:30,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890666897] [2024-11-19 09:35:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:30,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:30,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:30,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890666897] [2024-11-19 09:35:30,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890666897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:30,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:30,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:35:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306236293] [2024-11-19 09:35:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:30,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:35:30,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:35:30,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:35:30,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-11-19 09:35:30,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 44 transitions, 161 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-11-19 09:35:30,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:30,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-11-19 09:35:30,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:30,473 INFO L124 PetriNetUnfolderBase]: 1394/2638 cut-off events. [2024-11-19 09:35:30,473 INFO L125 PetriNetUnfolderBase]: For 3930/3930 co-relation queries the response was YES. [2024-11-19 09:35:30,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7252 conditions, 2638 events. 1394/2638 cut-off events. For 3930/3930 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 18906 event pairs, 369 based on Foata normal form. 48/2574 useless extension candidates. Maximal degree in co-relation 7234. Up to 647 conditions per place. [2024-11-19 09:35:30,487 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 36 selfloop transitions, 3 changer transitions 34/92 dead transitions. [2024-11-19 09:35:30,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 92 transitions, 511 flow [2024-11-19 09:35:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:35:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:35:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2024-11-19 09:35:30,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846 [2024-11-19 09:35:30,489 INFO L175 Difference]: Start difference. First operand has 69 places, 44 transitions, 161 flow. Second operand 8 states and 264 transitions. [2024-11-19 09:35:30,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 92 transitions, 511 flow [2024-11-19 09:35:30,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 92 transitions, 471 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-11-19 09:35:30,497 INFO L231 Difference]: Finished difference. Result has 70 places, 43 transitions, 159 flow [2024-11-19 09:35:30,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=159, PETRI_PLACES=70, PETRI_TRANSITIONS=43} [2024-11-19 09:35:30,498 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-11-19 09:35:30,498 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 43 transitions, 159 flow [2024-11-19 09:35:30,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-11-19 09:35:30,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:30,498 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] [2024-11-19 09:35:30,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:35:30,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:30,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2072029342, now seen corresponding path program 1 times [2024-11-19 09:35:30,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:30,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082916037] [2024-11-19 09:35:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:30,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:30,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:30,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082916037] [2024-11-19 09:35:30,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082916037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:30,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:30,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:35:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184905594] [2024-11-19 09:35:30,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:30,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:30,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:30,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:30,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:30,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-11-19 09:35:30,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 43 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-19 09:35:30,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:30,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-11-19 09:35:30,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:30,836 INFO L124 PetriNetUnfolderBase]: 550/1192 cut-off events. [2024-11-19 09:35:30,836 INFO L125 PetriNetUnfolderBase]: For 1583/1583 co-relation queries the response was YES. [2024-11-19 09:35:30,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3014 conditions, 1192 events. 550/1192 cut-off events. For 1583/1583 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7526 event pairs, 300 based on Foata normal form. 24/1149 useless extension candidates. Maximal degree in co-relation 2996. Up to 567 conditions per place. [2024-11-19 09:35:30,845 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 33 selfloop transitions, 3 changer transitions 19/75 dead transitions. [2024-11-19 09:35:30,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 388 flow [2024-11-19 09:35:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:35:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:35:30,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2024-11-19 09:35:30,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846 [2024-11-19 09:35:30,847 INFO L175 Difference]: Start difference. First operand has 70 places, 43 transitions, 159 flow. Second operand 7 states and 231 transitions. [2024-11-19 09:35:30,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 388 flow [2024-11-19 09:35:30,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 75 transitions, 350 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-11-19 09:35:30,853 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 154 flow [2024-11-19 09:35:30,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=154, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2024-11-19 09:35:30,855 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2024-11-19 09:35:30,855 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 154 flow [2024-11-19 09:35:30,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-19 09:35:30,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:30,856 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] [2024-11-19 09:35:30,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:35:30,856 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:30,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1679534393, now seen corresponding path program 1 times [2024-11-19 09:35:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:30,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164677129] [2024-11-19 09:35:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:30,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:30,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:30,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164677129] [2024-11-19 09:35:30,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164677129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:30,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:30,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:35:30,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467176407] [2024-11-19 09:35:30,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:30,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:30,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:31,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:31,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:31,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 52 [2024-11-19 09:35:31,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 43 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-19 09:35:31,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:31,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 52 [2024-11-19 09:35:31,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:31,199 INFO L124 PetriNetUnfolderBase]: 674/1335 cut-off events. [2024-11-19 09:35:31,200 INFO L125 PetriNetUnfolderBase]: For 1283/1330 co-relation queries the response was YES. [2024-11-19 09:35:31,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3206 conditions, 1335 events. 674/1335 cut-off events. For 1283/1330 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8626 event pairs, 168 based on Foata normal form. 24/1266 useless extension candidates. Maximal degree in co-relation 3189. Up to 319 conditions per place. [2024-11-19 09:35:31,207 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 25 selfloop transitions, 3 changer transitions 25/75 dead transitions. [2024-11-19 09:35:31,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 355 flow [2024-11-19 09:35:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:35:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:35:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2024-11-19 09:35:31,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466346153846154 [2024-11-19 09:35:31,208 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 154 flow. Second operand 8 states and 269 transitions. [2024-11-19 09:35:31,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 355 flow [2024-11-19 09:35:31,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 323 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-19 09:35:31,212 INFO L231 Difference]: Finished difference. Result has 72 places, 41 transitions, 149 flow [2024-11-19 09:35:31,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=149, PETRI_PLACES=72, PETRI_TRANSITIONS=41} [2024-11-19 09:35:31,213 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-11-19 09:35:31,214 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 41 transitions, 149 flow [2024-11-19 09:35:31,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-19 09:35:31,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:35:31,214 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] [2024-11-19 09:35:31,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:35:31,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:35:31,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:35:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1427400079, now seen corresponding path program 1 times [2024-11-19 09:35:31,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:35:31,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752341512] [2024-11-19 09:35:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:35:31,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:35:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:35:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:35:31,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:35:31,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752341512] [2024-11-19 09:35:31,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752341512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:35:31,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:35:31,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:35:31,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644577868] [2024-11-19 09:35:31,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:35:31,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:35:31,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:35:31,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:35:31,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:35:31,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 52 [2024-11-19 09:35:31,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 41 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-19 09:35:31,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:35:31,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 52 [2024-11-19 09:35:31,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:35:31,457 INFO L124 PetriNetUnfolderBase]: 253/502 cut-off events. [2024-11-19 09:35:31,458 INFO L125 PetriNetUnfolderBase]: For 447/462 co-relation queries the response was YES. [2024-11-19 09:35:31,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 502 events. 253/502 cut-off events. For 447/462 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2519 event pairs, 45 based on Foata normal form. 24/500 useless extension candidates. Maximal degree in co-relation 1152. Up to 152 conditions per place. [2024-11-19 09:35:31,459 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-11-19 09:35:31,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 61 transitions, 281 flow [2024-11-19 09:35:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:35:31,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:35:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-11-19 09:35:31,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6225961538461539 [2024-11-19 09:35:31,461 INFO L175 Difference]: Start difference. First operand has 72 places, 41 transitions, 149 flow. Second operand 8 states and 259 transitions. [2024-11-19 09:35:31,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 61 transitions, 281 flow [2024-11-19 09:35:31,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 225 flow, removed 21 selfloop flow, removed 11 redundant places. [2024-11-19 09:35:31,462 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-11-19 09:35:31,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-11-19 09:35:31,463 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-11-19 09:35:31,463 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-11-19 09:35:31,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-19 09:35:31,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-19 09:35:31,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-19 09:35:31,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-19 09:35:31,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-19 09:35:31,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-19 09:35:31,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-19 09:35:31,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:35:31,467 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:35:31,469 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:35:31,469 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:35:31,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:35:31 BasicIcfg [2024-11-19 09:35:31,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:35:31,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:35:31,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:35:31,480 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:35:31,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:35:27" (3/4) ... [2024-11-19 09:35:31,483 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:35:31,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 09:35:31,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 09:35:31,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-19 09:35:31,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-19 09:35:31,489 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2024-11-19 09:35:31,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-19 09:35:31,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 09:35:31,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 09:35:31,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:35:31,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:35:31,561 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:35:31,562 INFO L158 Benchmark]: Toolchain (without parser) took 4928.41ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 117.7MB in the beginning and 203.2MB in the end (delta: -85.4MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,562 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:35:31,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.36ms. Allocated memory is still 176.2MB. Free memory was 117.7MB in the beginning and 94.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.74ms. Allocated memory is still 176.2MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,563 INFO L158 Benchmark]: Boogie Preprocessor took 46.26ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 90.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,563 INFO L158 Benchmark]: RCFGBuilder took 470.64ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 90.0MB in the beginning and 198.9MB in the end (delta: -108.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,563 INFO L158 Benchmark]: TraceAbstraction took 3847.19ms. Allocated memory was 232.8MB in the beginning and 281.0MB in the end (delta: 48.2MB). Free memory was 197.8MB in the beginning and 207.4MB in the end (delta: -9.5MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,563 INFO L158 Benchmark]: Witness Printer took 80.96ms. Allocated memory is still 281.0MB. Free memory was 207.4MB in the beginning and 203.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:35:31,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.36ms. Allocated memory is still 176.2MB. Free memory was 117.7MB in the beginning and 94.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.74ms. Allocated memory is still 176.2MB. Free memory was 94.7MB in the beginning and 92.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.26ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 90.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.64ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 90.0MB in the beginning and 198.9MB in the end (delta: -108.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3847.19ms. Allocated memory was 232.8MB in the beginning and 281.0MB in the end (delta: 48.2MB). Free memory was 197.8MB in the beginning and 207.4MB in the end (delta: -9.5MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Witness Printer took 80.96ms. Allocated memory is still 281.0MB. Free memory was 207.4MB in the beginning and 203.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 798]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 83 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 786 IncrementalHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 63 mSDtfsCounter, 786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=4, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 764 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:35:31,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE