./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC --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 e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:20:47,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:20:47,100 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-23 18:20:47,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:20:47,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:20:47,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:20:47,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:20:47,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:20:47,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:20:47,147 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:20:47,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:20:47,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:20:47,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:20:47,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:20:47,149 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:20:47,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:20:47,149 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-23 18:20:47,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:20:47,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:20:47,151 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:20:47,151 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:20:47,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:20:47,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:20:47,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:20:47,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:20:47,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:20:47,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:20:47,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:20:47,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:20:47,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:20:47,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:20:47,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:20:47,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:20:47,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:20:47,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:20:47,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:20:47,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:20:47,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:20:47,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:20:47,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:20:47,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:20:47,154 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC 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 -> e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad [2024-11-23 18:20:47,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:20:47,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:20:47,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:20:47,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:20:47,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:20:47,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-23 18:20:50,602 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/data/af4a04901/a02a4d7934ef43d587ecbe793b0b837b/FLAG42a070992 [2024-11-23 18:20:51,014 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:20:51,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-23 18:20:51,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/data/af4a04901/a02a4d7934ef43d587ecbe793b0b837b/FLAG42a070992 [2024-11-23 18:20:51,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/data/af4a04901/a02a4d7934ef43d587ecbe793b0b837b [2024-11-23 18:20:51,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:20:51,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:20:51,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:20:51,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:20:51,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:20:51,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed96291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51, skipping insertion in model container [2024-11-23 18:20:51,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:20:51,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:20:51,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:20:51,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:20:51,783 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:20:51,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51 WrapperNode [2024-11-23 18:20:51,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:20:51,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:20:51,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:20:51,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:20:51,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,857 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-23 18:20:51,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:20:51,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:20:51,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:20:51,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:20:51,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,901 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:20:51,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,911 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:20:51,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:20:51,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:20:51,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:20:51,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (1/1) ... [2024-11-23 18:20:51,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:20:51,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:20:51,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:20:51,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:20:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 18:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-23 18:20:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-23 18:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-23 18:20:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-23 18:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-23 18:20:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-23 18:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 18:20:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:20:52,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:20:52,025 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 18:20:52,237 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:20:52,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:20:52,532 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 18:20:52,534 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:20:52,693 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:20:52,693 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 18:20:52,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:20:52 BoogieIcfgContainer [2024-11-23 18:20:52,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:20:52,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:20:52,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:20:52,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:20:52,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:20:51" (1/3) ... [2024-11-23 18:20:52,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c752e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:20:52, skipping insertion in model container [2024-11-23 18:20:52,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:20:51" (2/3) ... [2024-11-23 18:20:52,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c752e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:20:52, skipping insertion in model container [2024-11-23 18:20:52,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:20:52" (3/3) ... [2024-11-23 18:20:52,708 INFO L128 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-23 18:20:52,729 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:20:52,731 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-23 18:20:52,731 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 18:20:52,822 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 18:20:52,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 96 flow [2024-11-23 18:20:52,936 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-23 18:20:52,939 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:20:52,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 2/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-23 18:20:52,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 42 transitions, 96 flow [2024-11-23 18:20:52,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 38 transitions, 85 flow [2024-11-23 18:20:52,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:20:52,975 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;@18c9190d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:20:52,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-23 18:20:53,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:20:53,001 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-11-23 18:20:53,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:20:53,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:53,002 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:53,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:53,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:53,040 INFO L85 PathProgramCache]: Analyzing trace with hash 41767399, now seen corresponding path program 1 times [2024-11-23 18:20:53,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:53,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426011423] [2024-11-23 18:20:53,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:53,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:53,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426011423] [2024-11-23 18:20:53,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426011423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:53,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:53,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 18:20:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315952171] [2024-11-23 18:20:53,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:53,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:20:53,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:53,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:20:53,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:20:53,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 42 [2024-11-23 18:20:53,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:53,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:53,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 42 [2024-11-23 18:20:53,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:53,630 INFO L124 PetriNetUnfolderBase]: 75/217 cut-off events. [2024-11-23 18:20:53,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:20:53,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 217 events. 75/217 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1172 event pairs, 75 based on Foata normal form. 24/223 useless extension candidates. Maximal degree in co-relation 361. Up to 136 conditions per place. [2024-11-23 18:20:53,639 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 12 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2024-11-23 18:20:53,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 105 flow [2024-11-23 18:20:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:20:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:20:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-23 18:20:53,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-11-23 18:20:53,657 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 85 flow. Second operand 3 states and 86 transitions. [2024-11-23 18:20:53,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 105 flow [2024-11-23 18:20:53,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 18:20:53,666 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2024-11-23 18:20:53,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-11-23 18:20:53,678 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2024-11-23 18:20:53,679 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2024-11-23 18:20:53,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:53,679 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:53,679 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:53,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:20:53,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:53,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:53,681 INFO L85 PathProgramCache]: Analyzing trace with hash 41768954, now seen corresponding path program 1 times [2024-11-23 18:20:53,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:53,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499200588] [2024-11-23 18:20:53,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:54,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:54,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499200588] [2024-11-23 18:20:54,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499200588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:54,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:54,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:20:54,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228818367] [2024-11-23 18:20:54,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:54,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:20:54,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:54,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:20:54,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:20:54,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 42 [2024-11-23 18:20:54,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:54,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:54,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 42 [2024-11-23 18:20:54,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:54,883 INFO L124 PetriNetUnfolderBase]: 421/834 cut-off events. [2024-11-23 18:20:54,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:20:54,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 834 events. 421/834 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5179 event pairs, 178 based on Foata normal form. 0/792 useless extension candidates. Maximal degree in co-relation 1536. Up to 411 conditions per place. [2024-11-23 18:20:54,900 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 23 selfloop transitions, 3 changer transitions 30/71 dead transitions. [2024-11-23 18:20:54,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 266 flow [2024-11-23 18:20:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:20:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 18:20:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2024-11-23 18:20:54,907 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-23 18:20:54,908 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 8 states and 210 transitions. [2024-11-23 18:20:54,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 266 flow [2024-11-23 18:20:54,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 71 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:20:54,914 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 106 flow [2024-11-23 18:20:54,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2024-11-23 18:20:54,916 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 7 predicate places. [2024-11-23 18:20:54,917 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 106 flow [2024-11-23 18:20:54,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:54,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:54,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:54,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:20:54,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:54,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2014766247, now seen corresponding path program 1 times [2024-11-23 18:20:54,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:54,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818201731] [2024-11-23 18:20:54,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:54,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:55,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:55,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818201731] [2024-11-23 18:20:55,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818201731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:55,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:55,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:20:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303740312] [2024-11-23 18:20:55,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:55,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:20:55,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:55,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:20:55,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:20:55,306 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-11-23 18:20:55,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:55,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:55,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-11-23 18:20:55,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:55,957 INFO L124 PetriNetUnfolderBase]: 511/1027 cut-off events. [2024-11-23 18:20:55,957 INFO L125 PetriNetUnfolderBase]: For 701/701 co-relation queries the response was YES. [2024-11-23 18:20:55,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 1027 events. 511/1027 cut-off events. For 701/701 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6819 event pairs, 82 based on Foata normal form. 30/1042 useless extension candidates. Maximal degree in co-relation 2365. Up to 321 conditions per place. [2024-11-23 18:20:55,972 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 40 selfloop transitions, 8 changer transitions 38/100 dead transitions. [2024-11-23 18:20:55,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 100 transitions, 496 flow [2024-11-23 18:20:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:20:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 18:20:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 323 transitions. [2024-11-23 18:20:55,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5915750915750916 [2024-11-23 18:20:55,984 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 106 flow. Second operand 13 states and 323 transitions. [2024-11-23 18:20:55,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 100 transitions, 496 flow [2024-11-23 18:20:55,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 100 transitions, 469 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-23 18:20:55,996 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 190 flow [2024-11-23 18:20:55,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=190, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2024-11-23 18:20:55,999 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2024-11-23 18:20:55,999 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 190 flow [2024-11-23 18:20:55,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:55,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:56,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:56,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:20:56,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:56,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1486249929, now seen corresponding path program 1 times [2024-11-23 18:20:56,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:56,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689929504] [2024-11-23 18:20:56,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:56,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:56,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:56,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689929504] [2024-11-23 18:20:56,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689929504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:56,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:56,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:20:56,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990081809] [2024-11-23 18:20:56,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:56,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:20:56,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:56,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:20:56,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:20:56,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 42 [2024-11-23 18:20:56,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:56,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:56,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 42 [2024-11-23 18:20:56,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:56,804 INFO L124 PetriNetUnfolderBase]: 329/715 cut-off events. [2024-11-23 18:20:56,804 INFO L125 PetriNetUnfolderBase]: For 2136/2136 co-relation queries the response was YES. [2024-11-23 18:20:56,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 715 events. 329/715 cut-off events. For 2136/2136 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4555 event pairs, 78 based on Foata normal form. 24/717 useless extension candidates. Maximal degree in co-relation 2287. Up to 372 conditions per place. [2024-11-23 18:20:56,815 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 27 selfloop transitions, 4 changer transitions 23/70 dead transitions. [2024-11-23 18:20:56,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 70 transitions, 464 flow [2024-11-23 18:20:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:20:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 18:20:56,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-11-23 18:20:56,817 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6054421768707483 [2024-11-23 18:20:56,817 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 190 flow. Second operand 7 states and 178 transitions. [2024-11-23 18:20:56,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 70 transitions, 464 flow [2024-11-23 18:20:56,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 70 transitions, 409 flow, removed 25 selfloop flow, removed 7 redundant places. [2024-11-23 18:20:56,838 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 187 flow [2024-11-23 18:20:56,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=187, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2024-11-23 18:20:56,841 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-11-23 18:20:56,841 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 187 flow [2024-11-23 18:20:56,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:56,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:56,841 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:56,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:20:56,842 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:56,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:56,842 INFO L85 PathProgramCache]: Analyzing trace with hash 247383691, now seen corresponding path program 1 times [2024-11-23 18:20:56,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:56,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531500361] [2024-11-23 18:20:56,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:56,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:57,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:57,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531500361] [2024-11-23 18:20:57,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531500361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:57,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:57,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:20:57,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494096943] [2024-11-23 18:20:57,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:57,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:20:57,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:57,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:20:57,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:20:57,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-11-23 18:20:57,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:57,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:57,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-11-23 18:20:57,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:57,503 INFO L124 PetriNetUnfolderBase]: 310/669 cut-off events. [2024-11-23 18:20:57,503 INFO L125 PetriNetUnfolderBase]: For 1333/1365 co-relation queries the response was YES. [2024-11-23 18:20:57,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1910 conditions, 669 events. 310/669 cut-off events. For 1333/1365 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4228 event pairs, 97 based on Foata normal form. 28/663 useless extension candidates. Maximal degree in co-relation 1888. Up to 148 conditions per place. [2024-11-23 18:20:57,511 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 20 selfloop transitions, 3 changer transitions 25/64 dead transitions. [2024-11-23 18:20:57,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 361 flow [2024-11-23 18:20:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:20:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 18:20:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 204 transitions. [2024-11-23 18:20:57,513 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-23 18:20:57,513 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 187 flow. Second operand 8 states and 204 transitions. [2024-11-23 18:20:57,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 361 flow [2024-11-23 18:20:57,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 325 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-11-23 18:20:57,521 INFO L231 Difference]: Finished difference. Result has 65 places, 32 transitions, 133 flow [2024-11-23 18:20:57,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=133, PETRI_PLACES=65, PETRI_TRANSITIONS=32} [2024-11-23 18:20:57,523 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2024-11-23 18:20:57,523 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 32 transitions, 133 flow [2024-11-23 18:20:57,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:57,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:57,524 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:57,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:20:57,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:57,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:57,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2055534897, now seen corresponding path program 1 times [2024-11-23 18:20:57,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:57,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690700553] [2024-11-23 18:20:57,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:57,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:57,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:57,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:57,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690700553] [2024-11-23 18:20:57,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690700553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:57,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:57,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:20:57,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575181855] [2024-11-23 18:20:57,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:57,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:20:57,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:57,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:20:57,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:20:57,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-11-23 18:20:57,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 32 transitions, 133 flow. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:57,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:57,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-11-23 18:20:57,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:58,154 INFO L124 PetriNetUnfolderBase]: 325/655 cut-off events. [2024-11-23 18:20:58,154 INFO L125 PetriNetUnfolderBase]: For 1326/1326 co-relation queries the response was YES. [2024-11-23 18:20:58,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1971 conditions, 655 events. 325/655 cut-off events. For 1326/1326 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3588 event pairs, 106 based on Foata normal form. 18/656 useless extension candidates. Maximal degree in co-relation 1948. Up to 219 conditions per place. [2024-11-23 18:20:58,160 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 22 selfloop transitions, 3 changer transitions 29/68 dead transitions. [2024-11-23 18:20:58,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 68 transitions, 425 flow [2024-11-23 18:20:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:20:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 18:20:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-11-23 18:20:58,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-11-23 18:20:58,163 INFO L175 Difference]: Start difference. First operand has 65 places, 32 transitions, 133 flow. Second operand 8 states and 200 transitions. [2024-11-23 18:20:58,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 68 transitions, 425 flow [2024-11-23 18:20:58,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 326 flow, removed 36 selfloop flow, removed 15 redundant places. [2024-11-23 18:20:58,170 INFO L231 Difference]: Finished difference. Result has 58 places, 32 transitions, 113 flow [2024-11-23 18:20:58,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=113, PETRI_PLACES=58, PETRI_TRANSITIONS=32} [2024-11-23 18:20:58,171 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2024-11-23 18:20:58,171 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 32 transitions, 113 flow [2024-11-23 18:20:58,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:58,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:58,171 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:58,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:20:58,172 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash -866081834, now seen corresponding path program 1 times [2024-11-23 18:20:58,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:58,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126252303] [2024-11-23 18:20:58,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:58,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:58,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:58,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126252303] [2024-11-23 18:20:58,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126252303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:58,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:58,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:20:58,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17631491] [2024-11-23 18:20:58,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:58,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:20:58,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:58,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:20:58,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:20:58,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-11-23 18:20:58,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 32 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:58,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:58,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-11-23 18:20:58,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:58,497 INFO L124 PetriNetUnfolderBase]: 370/727 cut-off events. [2024-11-23 18:20:58,497 INFO L125 PetriNetUnfolderBase]: For 578/578 co-relation queries the response was YES. [2024-11-23 18:20:58,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 727 events. 370/727 cut-off events. For 578/578 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4001 event pairs, 78 based on Foata normal form. 27/724 useless extension candidates. Maximal degree in co-relation 1713. Up to 353 conditions per place. [2024-11-23 18:20:58,505 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 24 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2024-11-23 18:20:58,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 45 transitions, 201 flow [2024-11-23 18:20:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:20:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:20:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2024-11-23 18:20:58,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-23 18:20:58,507 INFO L175 Difference]: Start difference. First operand has 58 places, 32 transitions, 113 flow. Second operand 4 states and 112 transitions. [2024-11-23 18:20:58,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 45 transitions, 201 flow [2024-11-23 18:20:58,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 181 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-23 18:20:58,512 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 127 flow [2024-11-23 18:20:58,512 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2024-11-23 18:20:58,513 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2024-11-23 18:20:58,513 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 127 flow [2024-11-23 18:20:58,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:58,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:58,514 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:58,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:20:58,514 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:58,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:58,515 INFO L85 PathProgramCache]: Analyzing trace with hash 660738135, now seen corresponding path program 1 times [2024-11-23 18:20:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:58,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112456028] [2024-11-23 18:20:58,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:58,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:58,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112456028] [2024-11-23 18:20:58,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112456028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:58,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:58,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:20:58,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102202097] [2024-11-23 18:20:58,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:58,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:20:58,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:58,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:20:58,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:20:58,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-11-23 18:20:58,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:58,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:58,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-11-23 18:20:58,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:58,908 INFO L124 PetriNetUnfolderBase]: 285/569 cut-off events. [2024-11-23 18:20:58,908 INFO L125 PetriNetUnfolderBase]: For 275/362 co-relation queries the response was YES. [2024-11-23 18:20:58,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 569 events. 285/569 cut-off events. For 275/362 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2690 event pairs, 27 based on Foata normal form. 30/578 useless extension candidates. Maximal degree in co-relation 1398. Up to 245 conditions per place. [2024-11-23 18:20:58,913 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 28 selfloop transitions, 8 changer transitions 1/52 dead transitions. [2024-11-23 18:20:58,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 52 transitions, 252 flow [2024-11-23 18:20:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:20:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 18:20:58,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-23 18:20:58,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2024-11-23 18:20:58,915 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 127 flow. Second operand 5 states and 139 transitions. [2024-11-23 18:20:58,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 52 transitions, 252 flow [2024-11-23 18:20:58,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 242 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-23 18:20:58,922 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 167 flow [2024-11-23 18:20:58,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2024-11-23 18:20:58,923 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-11-23 18:20:58,923 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 167 flow [2024-11-23 18:20:58,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:58,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:58,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:58,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:20:58,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:58,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1363049494, now seen corresponding path program 1 times [2024-11-23 18:20:58,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:58,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74300112] [2024-11-23 18:20:58,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:58,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:59,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:59,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74300112] [2024-11-23 18:20:59,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74300112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:59,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:59,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:20:59,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213021318] [2024-11-23 18:20:59,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:59,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:20:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:59,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:20:59,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:20:59,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-11-23 18:20:59,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:59,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:59,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-11-23 18:20:59,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:59,356 INFO L124 PetriNetUnfolderBase]: 162/320 cut-off events. [2024-11-23 18:20:59,356 INFO L125 PetriNetUnfolderBase]: For 370/491 co-relation queries the response was YES. [2024-11-23 18:20:59,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 320 events. 162/320 cut-off events. For 370/491 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1101 event pairs, 6 based on Foata normal form. 28/334 useless extension candidates. Maximal degree in co-relation 876. Up to 84 conditions per place. [2024-11-23 18:20:59,359 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 26 selfloop transitions, 11 changer transitions 1/53 dead transitions. [2024-11-23 18:20:59,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 279 flow [2024-11-23 18:20:59,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:20:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:20:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-23 18:20:59,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2024-11-23 18:20:59,361 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 167 flow. Second operand 6 states and 160 transitions. [2024-11-23 18:20:59,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 279 flow [2024-11-23 18:20:59,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 236 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-23 18:20:59,364 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 163 flow [2024-11-23 18:20:59,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2024-11-23 18:20:59,365 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2024-11-23 18:20:59,365 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 163 flow [2024-11-23 18:20:59,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:59,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:20:59,366 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:59,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:20:59,366 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 18:20:59,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:20:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1689631471, now seen corresponding path program 1 times [2024-11-23 18:20:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:20:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64095932] [2024-11-23 18:20:59,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:20:59,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:20:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:20:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:20:59,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:20:59,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64095932] [2024-11-23 18:20:59,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64095932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:20:59,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:20:59,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:20:59,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181599579] [2024-11-23 18:20:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:20:59,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:20:59,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:20:59,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:20:59,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:20:59,581 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-11-23 18:20:59,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:59,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:20:59,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-11-23 18:20:59,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:20:59,766 INFO L124 PetriNetUnfolderBase]: 97/229 cut-off events. [2024-11-23 18:20:59,766 INFO L125 PetriNetUnfolderBase]: For 182/186 co-relation queries the response was YES. [2024-11-23 18:20:59,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 229 events. 97/229 cut-off events. For 182/186 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 786 event pairs, 6 based on Foata normal form. 8/222 useless extension candidates. Maximal degree in co-relation 575. Up to 84 conditions per place. [2024-11-23 18:20:59,768 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-11-23 18:20:59,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 237 flow [2024-11-23 18:20:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:20:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:20:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2024-11-23 18:20:59,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-11-23 18:20:59,770 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 163 flow. Second operand 6 states and 148 transitions. [2024-11-23 18:20:59,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 237 flow [2024-11-23 18:20:59,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 181 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-23 18:20:59,772 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-11-23 18:20:59,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-11-23 18:20:59,777 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-11-23 18:20:59,778 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-11-23 18:20:59,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:20:59,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-23 18:20:59,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-23 18:20:59,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-23 18:20:59,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-23 18:20:59,786 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-23 18:20:59,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:20:59,787 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:20:59,791 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 18:20:59,791 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:20:59,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:20:59 BasicIcfg [2024-11-23 18:20:59,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:20:59,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:20:59,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:20:59,802 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:20:59,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:20:52" (3/4) ... [2024-11-23 18:20:59,806 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 18:20:59,810 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-23 18:20:59,810 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-23 18:20:59,810 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-23 18:20:59,817 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-23 18:20:59,818 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-23 18:20:59,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 18:20:59,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 18:20:59,918 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:20:59,918 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:20:59,919 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:20:59,920 INFO L158 Benchmark]: Toolchain (without parser) took 8853.70ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.3MB in the beginning and 266.5MB in the end (delta: -173.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2024-11-23 18:20:59,920 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:20:59,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.60ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 72.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:20:59,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.35ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:20:59,921 INFO L158 Benchmark]: Boogie Preprocessor took 69.45ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 69.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:20:59,922 INFO L158 Benchmark]: RCFGBuilder took 764.09ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 51.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:20:59,922 INFO L158 Benchmark]: TraceAbstraction took 7104.30ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 50.7MB in the beginning and 270.0MB in the end (delta: -219.3MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-11-23 18:20:59,922 INFO L158 Benchmark]: Witness Printer took 116.70ms. Allocated memory is still 352.3MB. Free memory was 270.0MB in the beginning and 266.5MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:20:59,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.60ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 72.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.35ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.45ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 69.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 764.09ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 51.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7104.30ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 50.7MB in the beginning and 270.0MB in the end (delta: -219.3MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 116.70ms. Allocated memory is still 352.3MB. Free memory was 270.0MB in the beginning and 266.5MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: 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 7 procedures, 64 locations, 5 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: 6.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 346 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 816 IncrementalHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 49 mSDtfsCounter, 816 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=3, InterpolantAutomatonStates: 68, 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, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 18:20:59,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd1efb08-ce0b-4eff-a18d-65040d847f7c/bin/uautomizer-verify-LYvppIcaGC/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