./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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:39:18,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:39:18,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:39:18,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:39:18,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:39:18,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:39:18,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:39:18,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:39:18,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:39:18,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:39:18,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:39:18,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:39:18,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:39:18,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:39:18,850 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:39:18,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:39:18,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:39:18,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:39:18,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:39:18,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:39:18,852 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:39:18,856 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:39:18,857 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:39:18,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:39:18,857 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:39:18,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:39:18,858 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:39:18,858 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:39:18,858 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:39:18,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:39:18,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:39:18,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:39:18,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:39:18,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:39:18,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:39:18,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:39:18,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:39:18,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:39:18,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:39:18,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:39:18,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:39:18,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:39:18,863 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2024-10-11 19:39:19,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:39:19,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:39:19,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:39:19,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:39:19,133 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:39:19,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 19:39:20,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:39:20,897 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:39:20,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 19:39:20,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/043e27b6a/8602a74427884b3e9ceebc8151c9bd55/FLAGade1453fa [2024-10-11 19:39:21,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/043e27b6a/8602a74427884b3e9ceebc8151c9bd55 [2024-10-11 19:39:21,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:39:21,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:39:21,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:39:21,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:39:21,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:39:21,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8932a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21, skipping insertion in model container [2024-10-11 19:39:21,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:39:21,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:39:21,704 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:39:21,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:39:21,805 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:39:21,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21 WrapperNode [2024-10-11 19:39:21,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:39:21,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:39:21,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:39:21,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:39:21,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,865 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-10-11 19:39:21,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:39:21,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:39:21,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:39:21,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:39:21,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,914 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]. [2024-10-11 19:39:21,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:39:21,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:39:21,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:39:21,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:39:21,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (1/1) ... [2024-10-11 19:39:21,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:39:21,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:39:22,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:39:22,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:39:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:39:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:39:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:39:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:39:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:39:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:39:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:39:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:39:22,083 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:39:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:39:22,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:39:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:39:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:39:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:39:22,087 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:39:22,233 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:39:22,236 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:39:22,415 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:39:22,416 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:39:22,516 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:39:22,518 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:39:22,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:39:22 BoogieIcfgContainer [2024-10-11 19:39:22,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:39:22,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:39:22,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:39:22,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:39:22,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:39:21" (1/3) ... [2024-10-11 19:39:22,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590a8289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:39:22, skipping insertion in model container [2024-10-11 19:39:22,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:21" (2/3) ... [2024-10-11 19:39:22,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590a8289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:39:22, skipping insertion in model container [2024-10-11 19:39:22,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:39:22" (3/3) ... [2024-10-11 19:39:22,530 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 19:39:22,548 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:39:22,548 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:39:22,548 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:39:22,600 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:39:22,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-10-11 19:39:22,687 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-10-11 19:39:22,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:22,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-10-11 19:39:22,695 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-10-11 19:39:22,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-10-11 19:39:22,714 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:39:22,726 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;@5da341d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:39:22,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 19:39:22,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:39:22,755 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-10-11 19:39:22,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:22,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:22,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:22,757 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)] === [2024-10-11 19:39:22,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1504320963, now seen corresponding path program 1 times [2024-10-11 19:39:22,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:22,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605294416] [2024-10-11 19:39:22,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:22,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:23,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:23,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605294416] [2024-10-11 19:39:23,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605294416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:23,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:23,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:39:23,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182723126] [2024-10-11 19:39:23,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:23,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:39:23,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:23,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:39:23,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:39:23,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 50 [2024-10-11 19:39:23,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-11 19:39:23,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:23,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 50 [2024-10-11 19:39:23,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:23,374 INFO L124 PetriNetUnfolderBase]: 211/497 cut-off events. [2024-10-11 19:39:23,375 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:23,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 497 events. 211/497 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3110 event pairs, 211 based on Foata normal form. 48/500 useless extension candidates. Maximal degree in co-relation 857. Up to 336 conditions per place. [2024-10-11 19:39:23,385 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 15 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-10-11 19:39:23,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 128 flow [2024-10-11 19:39:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:39:23,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:39:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-11 19:39:23,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2024-10-11 19:39:23,400 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 104 transitions. [2024-10-11 19:39:23,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 128 flow [2024-10-11 19:39:23,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:39:23,406 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-10-11 19:39:23,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-10-11 19:39:23,411 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-10-11 19:39:23,411 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-10-11 19:39:23,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-11 19:39:23,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:23,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:23,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:39:23,412 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)] === [2024-10-11 19:39:23,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:23,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1504322280, now seen corresponding path program 1 times [2024-10-11 19:39:23,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:23,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817646460] [2024-10-11 19:39:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:23,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:23,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817646460] [2024-10-11 19:39:23,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817646460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:23,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:23,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:39:23,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543248922] [2024-10-11 19:39:23,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:23,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:39:23,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:23,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:39:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:39:23,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-11 19:39:23,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-10-11 19:39:23,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:23,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-11 19:39:23,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:24,107 INFO L124 PetriNetUnfolderBase]: 1472/2528 cut-off events. [2024-10-11 19:39:24,108 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:24,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4726 conditions, 2528 events. 1472/2528 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 16212 event pairs, 340 based on Foata normal form. 81/2596 useless extension candidates. Maximal degree in co-relation 4720. Up to 1169 conditions per place. [2024-10-11 19:39:24,134 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 34 selfloop transitions, 6 changer transitions 1/60 dead transitions. [2024-10-11 19:39:24,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 218 flow [2024-10-11 19:39:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:39:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:39:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-10-11 19:39:24,136 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.695 [2024-10-11 19:39:24,136 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 4 states and 139 transitions. [2024-10-11 19:39:24,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 218 flow [2024-10-11 19:39:24,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:39:24,140 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 131 flow [2024-10-11 19:39:24,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2024-10-11 19:39:24,142 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-10-11 19:39:24,142 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 131 flow [2024-10-11 19:39:24,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-10-11 19:39:24,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:24,143 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] [2024-10-11 19:39:24,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:39:24,144 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)] === [2024-10-11 19:39:24,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash 57290602, now seen corresponding path program 1 times [2024-10-11 19:39:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:24,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031260992] [2024-10-11 19:39:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:24,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:24,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031260992] [2024-10-11 19:39:24,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031260992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:39:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726757910] [2024-10-11 19:39:24,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:24,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:39:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:24,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:39:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:39:24,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-11 19:39:24,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-11 19:39:24,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:24,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-11 19:39:24,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:24,673 INFO L124 PetriNetUnfolderBase]: 1364/2347 cut-off events. [2024-10-11 19:39:24,674 INFO L125 PetriNetUnfolderBase]: For 718/723 co-relation queries the response was YES. [2024-10-11 19:39:24,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5439 conditions, 2347 events. 1364/2347 cut-off events. For 718/723 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 14543 event pairs, 132 based on Foata normal form. 82/2418 useless extension candidates. Maximal degree in co-relation 5430. Up to 1025 conditions per place. [2024-10-11 19:39:24,694 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 43 selfloop transitions, 10 changer transitions 1/73 dead transitions. [2024-10-11 19:39:24,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 326 flow [2024-10-11 19:39:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:39:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:39:24,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-10-11 19:39:24,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.704 [2024-10-11 19:39:24,701 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 131 flow. Second operand 5 states and 176 transitions. [2024-10-11 19:39:24,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 326 flow [2024-10-11 19:39:24,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 315 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 19:39:24,705 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 183 flow [2024-10-11 19:39:24,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-11 19:39:24,706 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-10-11 19:39:24,706 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 183 flow [2024-10-11 19:39:24,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-11 19:39:24,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:24,706 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] [2024-10-11 19:39:24,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:39:24,707 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)] === [2024-10-11 19:39:24,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash 858311330, now seen corresponding path program 1 times [2024-10-11 19:39:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:24,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096913090] [2024-10-11 19:39:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:24,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096913090] [2024-10-11 19:39:24,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096913090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:24,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:24,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:24,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537661825] [2024-10-11 19:39:24,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:24,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:39:24,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:39:24,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:39:24,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-11 19:39:24,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2024-10-11 19:39:24,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:24,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-11 19:39:24,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:25,228 INFO L124 PetriNetUnfolderBase]: 1072/1831 cut-off events. [2024-10-11 19:39:25,229 INFO L125 PetriNetUnfolderBase]: For 1594/1604 co-relation queries the response was YES. [2024-10-11 19:39:25,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4869 conditions, 1831 events. 1072/1831 cut-off events. For 1594/1604 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10078 event pairs, 36 based on Foata normal form. 76/1896 useless extension candidates. Maximal degree in co-relation 4858. Up to 641 conditions per place. [2024-10-11 19:39:25,244 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 50 selfloop transitions, 14 changer transitions 1/84 dead transitions. [2024-10-11 19:39:25,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 84 transitions, 433 flow [2024-10-11 19:39:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:39:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:39:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-10-11 19:39:25,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7033333333333334 [2024-10-11 19:39:25,246 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 183 flow. Second operand 6 states and 211 transitions. [2024-10-11 19:39:25,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 84 transitions, 433 flow [2024-10-11 19:39:25,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 84 transitions, 403 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-11 19:39:25,252 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 233 flow [2024-10-11 19:39:25,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2024-10-11 19:39:25,253 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2024-10-11 19:39:25,254 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 233 flow [2024-10-11 19:39:25,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2024-10-11 19:39:25,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:25,254 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, 1, 1] [2024-10-11 19:39:25,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:39:25,255 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)] === [2024-10-11 19:39:25,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1213745174, now seen corresponding path program 1 times [2024-10-11 19:39:25,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598412593] [2024-10-11 19:39:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:25,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:25,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598412593] [2024-10-11 19:39:25,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598412593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:25,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:25,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:39:25,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156295395] [2024-10-11 19:39:25,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:25,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:39:25,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:25,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:39:25,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:39:25,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-11 19:39:25,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 233 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-10-11 19:39:25,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:25,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-11 19:39:25,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:25,706 INFO L124 PetriNetUnfolderBase]: 712/1159 cut-off events. [2024-10-11 19:39:25,707 INFO L125 PetriNetUnfolderBase]: For 1914/1924 co-relation queries the response was YES. [2024-10-11 19:39:25,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 1159 events. 712/1159 cut-off events. For 1914/1924 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5013 event pairs, 16 based on Foata normal form. 52/1200 useless extension candidates. Maximal degree in co-relation 3530. Up to 368 conditions per place. [2024-10-11 19:39:25,716 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 47 selfloop transitions, 18 changer transitions 1/85 dead transitions. [2024-10-11 19:39:25,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 85 transitions, 447 flow [2024-10-11 19:39:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:39:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:39:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-10-11 19:39:25,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742857142857143 [2024-10-11 19:39:25,718 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 233 flow. Second operand 7 states and 236 transitions. [2024-10-11 19:39:25,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 85 transitions, 447 flow [2024-10-11 19:39:25,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 85 transitions, 401 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-11 19:39:25,727 INFO L231 Difference]: Finished difference. Result has 65 places, 52 transitions, 243 flow [2024-10-11 19:39:25,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=243, PETRI_PLACES=65, PETRI_TRANSITIONS=52} [2024-10-11 19:39:25,728 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2024-10-11 19:39:25,728 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 52 transitions, 243 flow [2024-10-11 19:39:25,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-10-11 19:39:25,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:25,729 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:25,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:39:25,729 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)] === [2024-10-11 19:39:25,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 493565021, now seen corresponding path program 1 times [2024-10-11 19:39:25,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:25,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961813151] [2024-10-11 19:39:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:25,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:26,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:26,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:26,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961813151] [2024-10-11 19:39:26,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961813151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:26,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:26,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:39:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314187384] [2024-10-11 19:39:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:26,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:39:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:26,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:39:26,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:39:26,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-11 19:39:26,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 52 transitions, 243 flow. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 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) [2024-10-11 19:39:26,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:26,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-11 19:39:26,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:26,958 INFO L124 PetriNetUnfolderBase]: 3786/6708 cut-off events. [2024-10-11 19:39:26,958 INFO L125 PetriNetUnfolderBase]: For 4209/4339 co-relation queries the response was YES. [2024-10-11 19:39:26,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16139 conditions, 6708 events. 3786/6708 cut-off events. For 4209/4339 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 48938 event pairs, 789 based on Foata normal form. 64/6357 useless extension candidates. Maximal degree in co-relation 16126. Up to 1553 conditions per place. [2024-10-11 19:39:27,013 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 56 selfloop transitions, 11 changer transitions 44/140 dead transitions. [2024-10-11 19:39:27,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 140 transitions, 691 flow [2024-10-11 19:39:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 19:39:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 19:39:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 423 transitions. [2024-10-11 19:39:27,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6042857142857143 [2024-10-11 19:39:27,016 INFO L175 Difference]: Start difference. First operand has 65 places, 52 transitions, 243 flow. Second operand 14 states and 423 transitions. [2024-10-11 19:39:27,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 140 transitions, 691 flow [2024-10-11 19:39:27,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 140 transitions, 555 flow, removed 37 selfloop flow, removed 10 redundant places. [2024-10-11 19:39:27,080 INFO L231 Difference]: Finished difference. Result has 81 places, 61 transitions, 243 flow [2024-10-11 19:39:27,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=243, PETRI_PLACES=81, PETRI_TRANSITIONS=61} [2024-10-11 19:39:27,081 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 25 predicate places. [2024-10-11 19:39:27,081 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 61 transitions, 243 flow [2024-10-11 19:39:27,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 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) [2024-10-11 19:39:27,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:27,082 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:27,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:39:27,082 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)] === [2024-10-11 19:39:27,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash 814472793, now seen corresponding path program 2 times [2024-10-11 19:39:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:27,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121692509] [2024-10-11 19:39:27,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:27,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:27,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:27,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121692509] [2024-10-11 19:39:27,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121692509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:27,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:27,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:27,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113979224] [2024-10-11 19:39:27,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:27,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:39:27,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:27,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:39:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:39:27,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-10-11 19:39:27,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 61 transitions, 243 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) [2024-10-11 19:39:27,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:27,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-10-11 19:39:27,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:28,123 INFO L124 PetriNetUnfolderBase]: 3566/6619 cut-off events. [2024-10-11 19:39:28,124 INFO L125 PetriNetUnfolderBase]: For 2263/2372 co-relation queries the response was YES. [2024-10-11 19:39:28,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14506 conditions, 6619 events. 3566/6619 cut-off events. For 2263/2372 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 52654 event pairs, 1220 based on Foata normal form. 34/5834 useless extension candidates. Maximal degree in co-relation 14485. Up to 2273 conditions per place. [2024-10-11 19:39:28,170 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 23 selfloop transitions, 3 changer transitions 30/89 dead transitions. [2024-10-11 19:39:28,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 445 flow [2024-10-11 19:39:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:39:28,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:39:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 199 transitions. [2024-10-11 19:39:28,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6633333333333333 [2024-10-11 19:39:28,173 INFO L175 Difference]: Start difference. First operand has 81 places, 61 transitions, 243 flow. Second operand 6 states and 199 transitions. [2024-10-11 19:39:28,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 445 flow [2024-10-11 19:39:28,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 89 transitions, 421 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-10-11 19:39:28,187 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 199 flow [2024-10-11 19:39:28,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2024-10-11 19:39:28,189 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-11 19:39:28,189 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 199 flow [2024-10-11 19:39:28,190 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) [2024-10-11 19:39:28,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:28,190 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:28,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:39:28,191 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)] === [2024-10-11 19:39:28,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1482267, now seen corresponding path program 3 times [2024-10-11 19:39:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:28,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043358504] [2024-10-11 19:39:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:28,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:28,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043358504] [2024-10-11 19:39:28,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043358504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:28,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:28,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:28,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736353628] [2024-10-11 19:39:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:28,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:39:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:39:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:39:28,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-10-11 19:39:28,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 199 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) [2024-10-11 19:39:28,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:28,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-10-11 19:39:28,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:28,616 INFO L124 PetriNetUnfolderBase]: 685/1285 cut-off events. [2024-10-11 19:39:28,617 INFO L125 PetriNetUnfolderBase]: For 464/514 co-relation queries the response was YES. [2024-10-11 19:39:28,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2758 conditions, 1285 events. 685/1285 cut-off events. For 464/514 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7263 event pairs, 241 based on Foata normal form. 16/1154 useless extension candidates. Maximal degree in co-relation 2747. Up to 755 conditions per place. [2024-10-11 19:39:28,625 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-10-11 19:39:28,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 311 flow [2024-10-11 19:39:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:39:28,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:39:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2024-10-11 19:39:28,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6233333333333333 [2024-10-11 19:39:28,628 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 199 flow. Second operand 6 states and 187 transitions. [2024-10-11 19:39:28,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 311 flow [2024-10-11 19:39:28,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 285 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-10-11 19:39:28,631 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-10-11 19:39:28,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-10-11 19:39:28,633 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-10-11 19:39:28,634 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-10-11 19:39:28,634 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) [2024-10-11 19:39:28,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-11 19:39:28,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-11 19:39:28,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-10-11 19:39:28,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-11 19:39:28,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-11 19:39:28,640 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-11 19:39:28,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:39:28,640 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2024-10-11 19:39:28,647 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:39:28,648 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:39:28,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:39:28 BasicIcfg [2024-10-11 19:39:28,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:39:28,658 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:39:28,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:39:28,659 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:39:28,660 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:39:22" (3/4) ... [2024-10-11 19:39:28,664 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:39:28,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 19:39:28,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 19:39:28,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 19:39:28,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-11 19:39:28,673 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-10-11 19:39:28,673 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-11 19:39:28,674 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 19:39:28,674 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:39:28,770 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:39:28,773 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:39:28,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:39:28,774 INFO L158 Benchmark]: Toolchain (without parser) took 7557.51ms. Allocated memory was 151.0MB in the beginning and 406.8MB in the end (delta: 255.9MB). Free memory was 92.9MB in the beginning and 173.0MB in the end (delta: -80.1MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,774 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:39:28,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.19ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 70.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.98ms. Allocated memory is still 151.0MB. Free memory was 70.0MB in the beginning and 68.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,775 INFO L158 Benchmark]: Boogie Preprocessor took 98.78ms. Allocated memory is still 151.0MB. Free memory was 68.0MB in the beginning and 121.0MB in the end (delta: -52.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,776 INFO L158 Benchmark]: RCFGBuilder took 551.09ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 120.9MB in the beginning and 165.8MB in the end (delta: -44.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,776 INFO L158 Benchmark]: TraceAbstraction took 6136.78ms. Allocated memory was 213.9MB in the beginning and 406.8MB in the end (delta: 192.9MB). Free memory was 165.8MB in the beginning and 177.2MB in the end (delta: -11.4MB). Peak memory consumption was 180.5MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,776 INFO L158 Benchmark]: Witness Printer took 115.05ms. Allocated memory is still 406.8MB. Free memory was 177.2MB in the beginning and 173.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:39:28,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.19ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 70.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.98ms. Allocated memory is still 151.0MB. Free memory was 70.0MB in the beginning and 68.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.78ms. Allocated memory is still 151.0MB. Free memory was 68.0MB in the beginning and 121.0MB in the end (delta: -52.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 551.09ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 120.9MB in the beginning and 165.8MB in the end (delta: -44.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6136.78ms. Allocated memory was 213.9MB in the beginning and 406.8MB in the end (delta: 192.9MB). Free memory was 165.8MB in the beginning and 177.2MB in the end (delta: -11.4MB). Peak memory consumption was 180.5MB. Max. memory is 16.1GB. * Witness Printer took 115.05ms. Allocated memory is still 406.8MB. Free memory was 177.2MB in the beginning and 173.0MB 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: 784]: 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, 79 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: 6.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 789 IncrementalHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 26 mSDtfsCounter, 789 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=5, InterpolantAutomatonStates: 51, 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, 1.6s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 695 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! [2024-10-11 19:39:28,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE