./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/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 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-dev-4a390ef-m [2024-10-24 19:05:52,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:05:52,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:05:52,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:05:52,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:05:52,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:05:52,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:05:52,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:05:52,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:05:52,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:05:52,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:05:52,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:05:52,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:05:52,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:05:52,300 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:05:52,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:05:52,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:05:52,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:05:52,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:05:52,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:05:52,305 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:05:52,305 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:05:52,305 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:05:52,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:05:52,306 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:05:52,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:05:52,307 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:05:52,307 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:05:52,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:05:52,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:05:52,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:05:52,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:05:52,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:05:52,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:05:52,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:05:52,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:05:52,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:05:52,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:05:52,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:05:52,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:05:52,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:05:52,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:05:52,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2024-10-24 19:05:52,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:05:52,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:05:52,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:05:52,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:05:52,639 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:05:52,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:05:54,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:05:54,320 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:05:54,323 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:05:54,343 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d47288f9/09d1e25c088c47a78862c42e44bee74e/FLAG37fd499f2 [2024-10-24 19:05:54,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d47288f9/09d1e25c088c47a78862c42e44bee74e [2024-10-24 19:05:54,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:05:54,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:05:54,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:05:54,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:05:54,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:05:54,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:54" (1/1) ... [2024-10-24 19:05:54,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bed984c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:54, skipping insertion in model container [2024-10-24 19:05:54,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:54" (1/1) ... [2024-10-24 19:05:54,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:05:55,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:05:55,015 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:05:55,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:05:55,111 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:05:55,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55 WrapperNode [2024-10-24 19:05:55,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:05:55,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:05:55,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:05:55,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:05:55,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,156 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-10-24 19:05:55,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:05:55,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:05:55,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:05:55,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:05:55,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,170 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,194 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 19:05:55,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:05:55,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:05:55,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:05:55,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:05:55,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (1/1) ... [2024-10-24 19:05:55,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:05:55,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:05:55,246 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) [2024-10-24 19:05:55,249 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 [2024-10-24 19:05:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:05:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:05:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:05:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:05:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:05:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:05:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:05:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:05:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 19:05:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 19:05:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:05:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:05:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:05:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:05:55,309 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:05:55,481 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:05:55,484 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:05:55,708 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:05:55,708 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:05:55,807 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:05:55,808 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:05:55,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:55 BoogieIcfgContainer [2024-10-24 19:05:55,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:05:55,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:05:55,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:05:55,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:05:55,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:05:54" (1/3) ... [2024-10-24 19:05:55,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e83ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:05:55, skipping insertion in model container [2024-10-24 19:05:55,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:55" (2/3) ... [2024-10-24 19:05:55,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e83ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:05:55, skipping insertion in model container [2024-10-24 19:05:55,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:55" (3/3) ... [2024-10-24 19:05:55,817 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:05:55,833 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:05:55,833 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:05:55,834 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:05:55,878 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:05:55,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 120 flow [2024-10-24 19:05:55,943 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-10-24 19:05:55,943 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:55,947 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. [2024-10-24 19:05:55,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 52 transitions, 120 flow [2024-10-24 19:05:55,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 47 transitions, 106 flow [2024-10-24 19:05:55,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:05:55,969 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;@572dc0b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:05:55,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:05:55,989 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:05:55,990 INFO L124 PetriNetUnfolderBase]: 2/45 cut-off events. [2024-10-24 19:05:55,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:55,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:55,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:55,991 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)] === [2024-10-24 19:05:56,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1656970472, now seen corresponding path program 1 times [2024-10-24 19:05:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:56,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005397221] [2024-10-24 19:05:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:56,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:56,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:56,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005397221] [2024-10-24 19:05:56,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005397221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:56,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:56,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:05:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288348192] [2024-10-24 19:05:56,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:56,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:05:56,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:56,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:05:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:05:56,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 52 [2024-10-24 19:05:56,367 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) [2024-10-24 19:05:56,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:56,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 52 [2024-10-24 19:05:56,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:56,555 INFO L124 PetriNetUnfolderBase]: 211/507 cut-off events. [2024-10-24 19:05:56,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:56,562 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. [2024-10-24 19:05:56,568 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 15 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-24 19:05:56,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 132 flow [2024-10-24 19:05:56,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:05:56,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:05:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-10-24 19:05:56,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2024-10-24 19:05:56,583 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 106 flow. Second operand 3 states and 110 transitions. [2024-10-24 19:05:56,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 132 flow [2024-10-24 19:05:56,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:05:56,591 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-24 19:05:56,595 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} [2024-10-24 19:05:56,599 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2024-10-24 19:05:56,600 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-24 19:05:56,601 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) [2024-10-24 19:05:56,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:56,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:56,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:05:56,602 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)] === [2024-10-24 19:05:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1656971759, now seen corresponding path program 1 times [2024-10-24 19:05:56,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:56,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663482470] [2024-10-24 19:05:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:56,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:56,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663482470] [2024-10-24 19:05:56,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663482470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:56,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:56,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:05:56,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996819876] [2024-10-24 19:05:56,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:56,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:05:56,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:56,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:05:56,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:05:57,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-10-24 19:05:57,006 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) [2024-10-24 19:05:57,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:57,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-10-24 19:05:57,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:57,675 INFO L124 PetriNetUnfolderBase]: 2120/3783 cut-off events. [2024-10-24 19:05:57,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:57,683 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. [2024-10-24 19:05:57,698 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 28 selfloop transitions, 5 changer transitions 38/91 dead transitions. [2024-10-24 19:05:57,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 91 transitions, 340 flow [2024-10-24 19:05:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:05:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:05:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 273 transitions. [2024-10-24 19:05:57,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65625 [2024-10-24 19:05:57,703 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 273 transitions. [2024-10-24 19:05:57,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 91 transitions, 340 flow [2024-10-24 19:05:57,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:05:57,709 INFO L231 Difference]: Finished difference. Result has 64 places, 45 transitions, 148 flow [2024-10-24 19:05:57,710 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} [2024-10-24 19:05:57,711 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2024-10-24 19:05:57,711 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 148 flow [2024-10-24 19:05:57,712 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) [2024-10-24 19:05:57,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:57,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:57,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:05:57,713 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)] === [2024-10-24 19:05:57,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2100473072, now seen corresponding path program 1 times [2024-10-24 19:05:57,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:57,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857920899] [2024-10-24 19:05:57,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:57,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:57,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:57,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857920899] [2024-10-24 19:05:57,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857920899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:57,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:57,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:05:57,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374290731] [2024-10-24 19:05:57,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:57,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:05:57,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:57,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:05:57,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:05:57,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 52 [2024-10-24 19:05:57,981 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) [2024-10-24 19:05:57,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:57,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 52 [2024-10-24 19:05:57,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:58,361 INFO L124 PetriNetUnfolderBase]: 1072/2277 cut-off events. [2024-10-24 19:05:58,362 INFO L125 PetriNetUnfolderBase]: For 1890/2062 co-relation queries the response was YES. [2024-10-24 19:05:58,373 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. [2024-10-24 19:05:58,385 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 21 selfloop transitions, 3 changer transitions 19/69 dead transitions. [2024-10-24 19:05:58,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 69 transitions, 304 flow [2024-10-24 19:05:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:05:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:05:58,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-10-24 19:05:58,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6593406593406593 [2024-10-24 19:05:58,392 INFO L175 Difference]: Start difference. First operand has 64 places, 45 transitions, 148 flow. Second operand 7 states and 240 transitions. [2024-10-24 19:05:58,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 69 transitions, 304 flow [2024-10-24 19:05:58,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 291 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-10-24 19:05:58,412 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 158 flow [2024-10-24 19:05:58,412 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} [2024-10-24 19:05:58,413 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2024-10-24 19:05:58,414 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 158 flow [2024-10-24 19:05:58,415 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) [2024-10-24 19:05:58,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:58,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:58,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:05:58,416 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)] === [2024-10-24 19:05:58,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash 251497278, now seen corresponding path program 1 times [2024-10-24 19:05:58,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:58,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693024700] [2024-10-24 19:05:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:58,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:58,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693024700] [2024-10-24 19:05:58,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693024700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:58,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:05:58,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115839360] [2024-10-24 19:05:58,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:58,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:58,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:58,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:58,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 52 [2024-10-24 19:05:58,600 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) [2024-10-24 19:05:58,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:58,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 52 [2024-10-24 19:05:58,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:59,010 INFO L124 PetriNetUnfolderBase]: 1354/2584 cut-off events. [2024-10-24 19:05:59,011 INFO L125 PetriNetUnfolderBase]: For 3051/3249 co-relation queries the response was YES. [2024-10-24 19:05:59,024 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. [2024-10-24 19:05:59,035 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 27 selfloop transitions, 3 changer transitions 24/79 dead transitions. [2024-10-24 19:05:59,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 79 transitions, 365 flow [2024-10-24 19:05:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:05:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:05:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2024-10-24 19:05:59,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6514423076923077 [2024-10-24 19:05:59,037 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 158 flow. Second operand 8 states and 271 transitions. [2024-10-24 19:05:59,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 79 transitions, 365 flow [2024-10-24 19:05:59,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 79 transitions, 341 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-24 19:05:59,058 INFO L231 Difference]: Finished difference. Result has 69 places, 44 transitions, 161 flow [2024-10-24 19:05:59,060 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} [2024-10-24 19:05:59,061 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2024-10-24 19:05:59,062 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 161 flow [2024-10-24 19:05:59,063 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) [2024-10-24 19:05:59,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:59,064 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] [2024-10-24 19:05:59,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:05:59,064 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)] === [2024-10-24 19:05:59,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash -677041637, now seen corresponding path program 1 times [2024-10-24 19:05:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888208402] [2024-10-24 19:05:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:59,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:59,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888208402] [2024-10-24 19:05:59,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888208402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:59,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:59,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:05:59,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885956606] [2024-10-24 19:05:59,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:59,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:05:59,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:59,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:05:59,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:05:59,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-10-24 19:05:59,310 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) [2024-10-24 19:05:59,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:59,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-10-24 19:05:59,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:59,742 INFO L124 PetriNetUnfolderBase]: 1394/2638 cut-off events. [2024-10-24 19:05:59,742 INFO L125 PetriNetUnfolderBase]: For 3930/3930 co-relation queries the response was YES. [2024-10-24 19:05:59,753 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. [2024-10-24 19:05:59,762 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 36 selfloop transitions, 3 changer transitions 34/92 dead transitions. [2024-10-24 19:05:59,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 92 transitions, 511 flow [2024-10-24 19:05:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:05:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:05:59,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2024-10-24 19:05:59,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846 [2024-10-24 19:05:59,764 INFO L175 Difference]: Start difference. First operand has 69 places, 44 transitions, 161 flow. Second operand 8 states and 264 transitions. [2024-10-24 19:05:59,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 92 transitions, 511 flow [2024-10-24 19:05:59,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 92 transitions, 471 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-10-24 19:05:59,775 INFO L231 Difference]: Finished difference. Result has 70 places, 43 transitions, 159 flow [2024-10-24 19:05:59,776 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} [2024-10-24 19:05:59,776 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-10-24 19:05:59,777 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 43 transitions, 159 flow [2024-10-24 19:05:59,777 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) [2024-10-24 19:05:59,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:59,777 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] [2024-10-24 19:05:59,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:05:59,778 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)] === [2024-10-24 19:05:59,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2072029342, now seen corresponding path program 1 times [2024-10-24 19:05:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:59,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220361402] [2024-10-24 19:05:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:59,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:59,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220361402] [2024-10-24 19:05:59,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220361402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:59,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:59,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:05:59,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628403966] [2024-10-24 19:05:59,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:59,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:59,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:59,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:59,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-10-24 19:05:59,963 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) [2024-10-24 19:05:59,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:59,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-10-24 19:05:59,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:00,175 INFO L124 PetriNetUnfolderBase]: 550/1192 cut-off events. [2024-10-24 19:06:00,176 INFO L125 PetriNetUnfolderBase]: For 1583/1583 co-relation queries the response was YES. [2024-10-24 19:06:00,180 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. [2024-10-24 19:06:00,185 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 33 selfloop transitions, 3 changer transitions 19/75 dead transitions. [2024-10-24 19:06:00,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 388 flow [2024-10-24 19:06:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:06:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:06:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2024-10-24 19:06:00,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846 [2024-10-24 19:06:00,187 INFO L175 Difference]: Start difference. First operand has 70 places, 43 transitions, 159 flow. Second operand 7 states and 231 transitions. [2024-10-24 19:06:00,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 388 flow [2024-10-24 19:06:00,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 75 transitions, 350 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-10-24 19:06:00,193 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 154 flow [2024-10-24 19:06:00,193 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} [2024-10-24 19:06:00,194 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2024-10-24 19:06:00,194 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 154 flow [2024-10-24 19:06:00,194 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) [2024-10-24 19:06:00,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:00,195 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] [2024-10-24 19:06:00,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:06:00,195 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)] === [2024-10-24 19:06:00,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:00,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1679534393, now seen corresponding path program 1 times [2024-10-24 19:06:00,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:06:00,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247470997] [2024-10-24 19:06:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:00,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:06:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:00,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:06:00,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247470997] [2024-10-24 19:06:00,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247470997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:00,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:00,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:06:00,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886681450] [2024-10-24 19:06:00,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:00,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:06:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:06:00,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:06:00,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:06:00,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 52 [2024-10-24 19:06:00,347 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) [2024-10-24 19:06:00,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:00,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 52 [2024-10-24 19:06:00,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:00,589 INFO L124 PetriNetUnfolderBase]: 674/1335 cut-off events. [2024-10-24 19:06:00,589 INFO L125 PetriNetUnfolderBase]: For 1283/1330 co-relation queries the response was YES. [2024-10-24 19:06:00,594 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. [2024-10-24 19:06:00,599 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 25 selfloop transitions, 3 changer transitions 25/75 dead transitions. [2024-10-24 19:06:00,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 355 flow [2024-10-24 19:06:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:06:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:06:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2024-10-24 19:06:00,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466346153846154 [2024-10-24 19:06:00,601 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 154 flow. Second operand 8 states and 269 transitions. [2024-10-24 19:06:00,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 355 flow [2024-10-24 19:06:00,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 323 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-10-24 19:06:00,605 INFO L231 Difference]: Finished difference. Result has 72 places, 41 transitions, 149 flow [2024-10-24 19:06:00,606 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} [2024-10-24 19:06:00,606 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-10-24 19:06:00,607 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 41 transitions, 149 flow [2024-10-24 19:06:00,607 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) [2024-10-24 19:06:00,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:00,607 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] [2024-10-24 19:06:00,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:06:00,608 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)] === [2024-10-24 19:06:00,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:00,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1427400079, now seen corresponding path program 1 times [2024-10-24 19:06:00,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:06:00,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968492041] [2024-10-24 19:06:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:00,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:06:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:00,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:06:00,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968492041] [2024-10-24 19:06:00,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968492041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:00,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:00,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:06:00,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031576329] [2024-10-24 19:06:00,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:00,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:06:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:06:00,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:06:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:06:00,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 52 [2024-10-24 19:06:00,773 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) [2024-10-24 19:06:00,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:00,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 52 [2024-10-24 19:06:00,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:00,934 INFO L124 PetriNetUnfolderBase]: 253/502 cut-off events. [2024-10-24 19:06:00,934 INFO L125 PetriNetUnfolderBase]: For 447/462 co-relation queries the response was YES. [2024-10-24 19:06:00,935 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. [2024-10-24 19:06:00,936 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-10-24 19:06:00,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 61 transitions, 281 flow [2024-10-24 19:06:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:06:00,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:06:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-10-24 19:06:00,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6225961538461539 [2024-10-24 19:06:00,938 INFO L175 Difference]: Start difference. First operand has 72 places, 41 transitions, 149 flow. Second operand 8 states and 259 transitions. [2024-10-24 19:06:00,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 61 transitions, 281 flow [2024-10-24 19:06:00,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 225 flow, removed 21 selfloop flow, removed 11 redundant places. [2024-10-24 19:06:00,940 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-10-24 19:06:00,940 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} [2024-10-24 19:06:00,941 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-10-24 19:06:00,942 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-10-24 19:06:00,942 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) [2024-10-24 19:06:00,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-24 19:06:00,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-24 19:06:00,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-10-24 19:06:00,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 19:06:00,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 19:06:00,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-24 19:06:00,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:06:00,951 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:00,955 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:06:00,955 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:06:00,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:06:00 BasicIcfg [2024-10-24 19:06:00,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:06:00,961 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:06:00,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:06:00,962 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:06:00,962 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:55" (3/4) ... [2024-10-24 19:06:00,964 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:06:00,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 19:06:00,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 19:06:00,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 19:06:00,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-24 19:06:00,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2024-10-24 19:06:00,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-24 19:06:00,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 19:06:00,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 19:06:01,066 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:06:01,066 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:06:01,067 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:06:01,067 INFO L158 Benchmark]: Toolchain (without parser) took 6451.56ms. Allocated memory was 188.7MB in the beginning and 381.7MB in the end (delta: 192.9MB). Free memory was 155.7MB in the beginning and 95.7MB in the end (delta: 60.1MB). Peak memory consumption was 251.4MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,067 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:06:01,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.71ms. Allocated memory is still 188.7MB. Free memory was 155.7MB in the beginning and 133.1MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.68ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,068 INFO L158 Benchmark]: Boogie Preprocessor took 49.75ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,069 INFO L158 Benchmark]: RCFGBuilder took 600.76ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 142.3MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,069 INFO L158 Benchmark]: TraceAbstraction took 5150.13ms. Allocated memory was 188.7MB in the beginning and 381.7MB in the end (delta: 192.9MB). Free memory was 141.3MB in the beginning and 100.9MB in the end (delta: 40.3MB). Peak memory consumption was 235.4MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,069 INFO L158 Benchmark]: Witness Printer took 105.54ms. Allocated memory is still 381.7MB. Free memory was 100.9MB in the beginning and 95.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:06:01,071 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.71ms. Allocated memory is still 188.7MB. Free memory was 155.7MB in the beginning and 133.1MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.68ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.75ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 600.76ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 142.3MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5150.13ms. Allocated memory was 188.7MB in the beginning and 381.7MB in the end (delta: 192.9MB). Free memory was 141.3MB in the beginning and 100.9MB in the end (delta: 40.3MB). Peak memory consumption was 235.4MB. Max. memory is 16.1GB. * Witness Printer took 105.54ms. Allocated memory is still 381.7MB. Free memory was 100.9MB in the beginning and 95.7MB in the end (delta: 5.2MB). 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: 5.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 0.7s 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, 0.5s 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, 1.5s 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! [2024-10-24 19:06:01,099 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