./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1 --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 e02ca79ae11b312cb156178ccd52c5da7b51884a938996d16b5a625457869bce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:46:55,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:46:55,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 08:46:55,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:46:55,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:46:55,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:46:55,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:46:55,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:46:55,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:46:55,218 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:46:55,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:46:55,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:46:55,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:46:55,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:46:55,218 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:46:55,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:46:55,219 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:46:55,220 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:46:55,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:46:55,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:46:55,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:46:55,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:46:55,221 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_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1 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 -> e02ca79ae11b312cb156178ccd52c5da7b51884a938996d16b5a625457869bce [2024-12-02 08:46:55,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:46:55,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:46:55,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:46:55,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:46:55,464 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:46:55,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-02 08:46:58,048 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/data/880a88df0/69c3519905c84b6f8c2a7734049731d6/FLAGaa338b034 [2024-12-02 08:46:58,307 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:46:58,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-02 08:46:58,319 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/data/880a88df0/69c3519905c84b6f8c2a7734049731d6/FLAGaa338b034 [2024-12-02 08:46:58,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/data/880a88df0/69c3519905c84b6f8c2a7734049731d6 [2024-12-02 08:46:58,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:46:58,335 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:46:58,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:46:58,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:46:58,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:46:58,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b65811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58, skipping insertion in model container [2024-12-02 08:46:58,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:46:58,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:46:58,592 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:46:58,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:46:58,654 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:46:58,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58 WrapperNode [2024-12-02 08:46:58,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:46:58,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:46:58,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:46:58,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:46:58,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,684 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-12-02 08:46:58,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:46:58,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:46:58,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:46:58,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:46:58,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,702 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]. [2024-12-02 08:46:58,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,706 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:46:58,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:46:58,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:46:58,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:46:58,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (1/1) ... [2024-12-02 08:46:58,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:46:58,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:46:58,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:46:58,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:46:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-02 08:46:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-02 08:46:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-12-02 08:46:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 08:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:46:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:46:58,761 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 08:46:58,856 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:46:58,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:46:58,974 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 08:46:58,975 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:46:59,048 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:46:59,048 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:46:59,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:46:59 BoogieIcfgContainer [2024-12-02 08:46:59,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:46:59,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:46:59,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:46:59,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:46:59,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:46:58" (1/3) ... [2024-12-02 08:46:59,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa536d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:46:59, skipping insertion in model container [2024-12-02 08:46:59,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:58" (2/3) ... [2024-12-02 08:46:59,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa536d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:46:59, skipping insertion in model container [2024-12-02 08:46:59,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:46:59" (3/3) ... [2024-12-02 08:46:59,056 INFO L128 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-02 08:46:59,066 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:46:59,067 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe009_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. [2024-12-02 08:46:59,067 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 08:46:59,104 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 08:46:59,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 96 flow [2024-12-02 08:46:59,161 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-12-02 08:46:59,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:46:59,165 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 69 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. [2024-12-02 08:46:59,165 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 42 transitions, 96 flow [2024-12-02 08:46:59,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 38 transitions, 85 flow [2024-12-02 08:46:59,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:46:59,182 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;@d54b2e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:46:59,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-02 08:46:59,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 08:46:59,196 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-12-02 08:46:59,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:46:59,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:46:59,197 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:46:59,197 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)] === [2024-12-02 08:46:59,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2044338403, now seen corresponding path program 1 times [2024-12-02 08:46:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:59,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806516674] [2024-12-02 08:46:59,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:59,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:46:59,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806516674] [2024-12-02 08:46:59,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806516674] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:59,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:59,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 08:46:59,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740881930] [2024-12-02 08:46:59,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:59,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:46:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:59,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:46:59,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:46:59,430 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 42 [2024-12-02 08:46:59,432 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) [2024-12-02 08:46:59,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:46:59,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 42 [2024-12-02 08:46:59,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:46:59,516 INFO L124 PetriNetUnfolderBase]: 75/215 cut-off events. [2024-12-02 08:46:59,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:46:59,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 215 events. 75/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1154 event pairs, 75 based on Foata normal form. 24/221 useless extension candidates. Maximal degree in co-relation 359. Up to 136 conditions per place. [2024-12-02 08:46:59,520 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 12 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2024-12-02 08:46:59,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 105 flow [2024-12-02 08:46:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:46:59,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 08:46:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-12-02 08:46:59,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-12-02 08:46:59,533 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 85 flow. Second operand 3 states and 86 transitions. [2024-12-02 08:46:59,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 105 flow [2024-12-02 08:46:59,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 08:46:59,539 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2024-12-02 08:46:59,541 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} [2024-12-02 08:46:59,543 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2024-12-02 08:46:59,544 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2024-12-02 08:46:59,544 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) [2024-12-02 08:46:59,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:46:59,544 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:46:59,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:46:59,545 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)] === [2024-12-02 08:46:59,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2044339834, now seen corresponding path program 1 times [2024-12-02 08:46:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82196031] [2024-12-02 08:46:59,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:59,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:46:59,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:59,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82196031] [2024-12-02 08:46:59,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82196031] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:59,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:59,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:59,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767457175] [2024-12-02 08:46:59,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:59,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:46:59,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:59,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:46:59,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:46:59,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-12-02 08:46:59,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-12-02 08:46:59,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:46:59,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-12-02 08:46:59,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:00,220 INFO L124 PetriNetUnfolderBase]: 962/1847 cut-off events. [2024-12-02 08:47:00,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 08:47:00,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3408 conditions, 1847 events. 962/1847 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 12916 event pairs, 280 based on Foata normal form. 0/1758 useless extension candidates. Maximal degree in co-relation 3402. Up to 647 conditions per place. [2024-12-02 08:47:00,231 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 27 selfloop transitions, 5 changer transitions 45/91 dead transitions. [2024-12-02 08:47:00,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 91 transitions, 348 flow [2024-12-02 08:47:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 08:47:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2024-12-02 08:47:00,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6375661375661376 [2024-12-02 08:47:00,233 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 9 states and 241 transitions. [2024-12-02 08:47:00,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 91 transitions, 348 flow [2024-12-02 08:47:00,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 08:47:00,236 INFO L231 Difference]: Finished difference. Result has 55 places, 35 transitions, 124 flow [2024-12-02 08:47:00,236 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=124, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2024-12-02 08:47:00,236 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-12-02 08:47:00,237 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 124 flow [2024-12-02 08:47:00,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-12-02 08:47:00,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:00,237 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:00,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:47:00,237 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)] === [2024-12-02 08:47:00,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash -708306437, now seen corresponding path program 1 times [2024-12-02 08:47:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:00,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028030934] [2024-12-02 08:47:00,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:00,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:00,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028030934] [2024-12-02 08:47:00,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028030934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:00,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:00,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:00,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588863110] [2024-12-02 08:47:00,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:00,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:00,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:00,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:00,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:00,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-12-02 08:47:00,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 124 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) [2024-12-02 08:47:00,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:00,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-12-02 08:47:00,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:00,711 INFO L124 PetriNetUnfolderBase]: 660/1386 cut-off events. [2024-12-02 08:47:00,711 INFO L125 PetriNetUnfolderBase]: For 1757/1766 co-relation queries the response was YES. [2024-12-02 08:47:00,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3722 conditions, 1386 events. 660/1386 cut-off events. For 1757/1766 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9649 event pairs, 113 based on Foata normal form. 58/1435 useless extension candidates. Maximal degree in co-relation 3709. Up to 515 conditions per place. [2024-12-02 08:47:00,717 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 34 selfloop transitions, 7 changer transitions 38/93 dead transitions. [2024-12-02 08:47:00,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 93 transitions, 567 flow [2024-12-02 08:47:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:47:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 08:47:00,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 259 transitions. [2024-12-02 08:47:00,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-12-02 08:47:00,720 INFO L175 Difference]: Start difference. First operand has 55 places, 35 transitions, 124 flow. Second operand 10 states and 259 transitions. [2024-12-02 08:47:00,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 93 transitions, 567 flow [2024-12-02 08:47:00,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 93 transitions, 513 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-12-02 08:47:00,728 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 179 flow [2024-12-02 08:47:00,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=179, PETRI_PLACES=61, PETRI_TRANSITIONS=39} [2024-12-02 08:47:00,729 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2024-12-02 08:47:00,729 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 179 flow [2024-12-02 08:47:00,729 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) [2024-12-02 08:47:00,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:00,729 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:00,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:47:00,729 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)] === [2024-12-02 08:47:00,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:00,730 INFO L85 PathProgramCache]: Analyzing trace with hash 790690683, now seen corresponding path program 1 times [2024-12-02 08:47:00,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:00,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231175787] [2024-12-02 08:47:00,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:00,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:00,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:00,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231175787] [2024-12-02 08:47:00,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231175787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:00,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:00,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862651265] [2024-12-02 08:47:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:00,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:00,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:00,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:00,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:00,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-12-02 08:47:00,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 39 transitions, 179 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) [2024-12-02 08:47:00,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:00,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-12-02 08:47:00,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:01,119 INFO L124 PetriNetUnfolderBase]: 544/1188 cut-off events. [2024-12-02 08:47:01,119 INFO L125 PetriNetUnfolderBase]: For 2247/2253 co-relation queries the response was YES. [2024-12-02 08:47:01,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3389 conditions, 1188 events. 544/1188 cut-off events. For 2247/2253 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8198 event pairs, 173 based on Foata normal form. 38/1210 useless extension candidates. Maximal degree in co-relation 3370. Up to 433 conditions per place. [2024-12-02 08:47:01,125 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 40 selfloop transitions, 7 changer transitions 32/93 dead transitions. [2024-12-02 08:47:01,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 93 transitions, 592 flow [2024-12-02 08:47:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:47:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 08:47:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 252 transitions. [2024-12-02 08:47:01,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-12-02 08:47:01,128 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 179 flow. Second operand 10 states and 252 transitions. [2024-12-02 08:47:01,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 93 transitions, 592 flow [2024-12-02 08:47:01,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 93 transitions, 544 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-12-02 08:47:01,133 INFO L231 Difference]: Finished difference. Result has 68 places, 42 transitions, 235 flow [2024-12-02 08:47:01,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=235, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2024-12-02 08:47:01,134 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 22 predicate places. [2024-12-02 08:47:01,134 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 42 transitions, 235 flow [2024-12-02 08:47:01,134 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) [2024-12-02 08:47:01,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:01,134 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:01,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:47:01,135 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)] === [2024-12-02 08:47:01,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:01,135 INFO L85 PathProgramCache]: Analyzing trace with hash 5907438, now seen corresponding path program 1 times [2024-12-02 08:47:01,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:01,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423957654] [2024-12-02 08:47:01,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:01,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:01,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:01,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423957654] [2024-12-02 08:47:01,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423957654] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:01,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:01,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:01,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560997264] [2024-12-02 08:47:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:01,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:01,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:01,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:01,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:01,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-12-02 08:47:01,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 42 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-12-02 08:47:01,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:01,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-12-02 08:47:01,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:01,547 INFO L124 PetriNetUnfolderBase]: 460/974 cut-off events. [2024-12-02 08:47:01,548 INFO L125 PetriNetUnfolderBase]: For 2333/2333 co-relation queries the response was YES. [2024-12-02 08:47:01,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3007 conditions, 974 events. 460/974 cut-off events. For 2333/2333 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6326 event pairs, 86 based on Foata normal form. 16/980 useless extension candidates. Maximal degree in co-relation 2982. Up to 390 conditions per place. [2024-12-02 08:47:01,557 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 35 selfloop transitions, 10 changer transitions 22/81 dead transitions. [2024-12-02 08:47:01,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 81 transitions, 546 flow [2024-12-02 08:47:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:47:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 08:47:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-12-02 08:47:01,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5761904761904761 [2024-12-02 08:47:01,559 INFO L175 Difference]: Start difference. First operand has 68 places, 42 transitions, 235 flow. Second operand 10 states and 242 transitions. [2024-12-02 08:47:01,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 81 transitions, 546 flow [2024-12-02 08:47:01,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 81 transitions, 497 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-12-02 08:47:01,568 INFO L231 Difference]: Finished difference. Result has 72 places, 42 transitions, 254 flow [2024-12-02 08:47:01,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=254, PETRI_PLACES=72, PETRI_TRANSITIONS=42} [2024-12-02 08:47:01,569 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2024-12-02 08:47:01,569 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 42 transitions, 254 flow [2024-12-02 08:47:01,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-12-02 08:47:01,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:01,569 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] [2024-12-02 08:47:01,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:47:01,569 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)] === [2024-12-02 08:47:01,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash 46403428, now seen corresponding path program 1 times [2024-12-02 08:47:01,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:01,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798574843] [2024-12-02 08:47:01,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:01,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:01,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:01,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798574843] [2024-12-02 08:47:01,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798574843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:01,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:01,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487520871] [2024-12-02 08:47:01,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:01,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:47:01,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:01,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:47:01,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:47:01,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 42 [2024-12-02 08:47:01,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 42 transitions, 254 flow. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 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) [2024-12-02 08:47:01,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:01,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 42 [2024-12-02 08:47:01,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:02,118 INFO L124 PetriNetUnfolderBase]: 765/1621 cut-off events. [2024-12-02 08:47:02,118 INFO L125 PetriNetUnfolderBase]: For 4165/4174 co-relation queries the response was YES. [2024-12-02 08:47:02,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4881 conditions, 1621 events. 765/1621 cut-off events. For 4165/4174 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 11590 event pairs, 133 based on Foata normal form. 40/1642 useless extension candidates. Maximal degree in co-relation 4853. Up to 374 conditions per place. [2024-12-02 08:47:02,131 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 41 selfloop transitions, 6 changer transitions 40/100 dead transitions. [2024-12-02 08:47:02,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 100 transitions, 779 flow [2024-12-02 08:47:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 08:47:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 228 transitions. [2024-12-02 08:47:02,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2024-12-02 08:47:02,133 INFO L175 Difference]: Start difference. First operand has 72 places, 42 transitions, 254 flow. Second operand 9 states and 228 transitions. [2024-12-02 08:47:02,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 100 transitions, 779 flow [2024-12-02 08:47:02,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 100 transitions, 697 flow, removed 20 selfloop flow, removed 11 redundant places. [2024-12-02 08:47:02,146 INFO L231 Difference]: Finished difference. Result has 69 places, 36 transitions, 193 flow [2024-12-02 08:47:02,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=193, PETRI_PLACES=69, PETRI_TRANSITIONS=36} [2024-12-02 08:47:02,147 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2024-12-02 08:47:02,147 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 36 transitions, 193 flow [2024-12-02 08:47:02,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 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) [2024-12-02 08:47:02,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:02,147 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] [2024-12-02 08:47:02,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:47:02,147 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)] === [2024-12-02 08:47:02,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash -966915387, now seen corresponding path program 1 times [2024-12-02 08:47:02,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:02,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135213105] [2024-12-02 08:47:02,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:02,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:02,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:02,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135213105] [2024-12-02 08:47:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135213105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:02,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:02,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623873436] [2024-12-02 08:47:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:02,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:02,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:02,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:02,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:02,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 42 [2024-12-02 08:47:02,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 36 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-12-02 08:47:02,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:02,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 42 [2024-12-02 08:47:02,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:02,503 INFO L124 PetriNetUnfolderBase]: 304/704 cut-off events. [2024-12-02 08:47:02,503 INFO L125 PetriNetUnfolderBase]: For 1918/1971 co-relation queries the response was YES. [2024-12-02 08:47:02,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 704 events. 304/704 cut-off events. For 1918/1971 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4414 event pairs, 121 based on Foata normal form. 20/702 useless extension candidates. Maximal degree in co-relation 2029. Up to 216 conditions per place. [2024-12-02 08:47:02,508 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 19 selfloop transitions, 3 changer transitions 20/57 dead transitions. [2024-12-02 08:47:02,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 57 transitions, 372 flow [2024-12-02 08:47:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:47:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 08:47:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-12-02 08:47:02,509 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-12-02 08:47:02,509 INFO L175 Difference]: Start difference. First operand has 69 places, 36 transitions, 193 flow. Second operand 6 states and 156 transitions. [2024-12-02 08:47:02,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 57 transitions, 372 flow [2024-12-02 08:47:02,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 277 flow, removed 18 selfloop flow, removed 15 redundant places. [2024-12-02 08:47:02,515 INFO L231 Difference]: Finished difference. Result has 58 places, 32 transitions, 117 flow [2024-12-02 08:47:02,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=58, PETRI_TRANSITIONS=32} [2024-12-02 08:47:02,516 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2024-12-02 08:47:02,516 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 32 transitions, 117 flow [2024-12-02 08:47:02,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-12-02 08:47:02,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:02,516 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] [2024-12-02 08:47:02,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:47:02,516 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)] === [2024-12-02 08:47:02,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:02,517 INFO L85 PathProgramCache]: Analyzing trace with hash -76436607, now seen corresponding path program 2 times [2024-12-02 08:47:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227727111] [2024-12-02 08:47:02,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:47:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:02,533 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:47:02,533 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:47:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:02,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:02,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227727111] [2024-12-02 08:47:02,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227727111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:02,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:02,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:47:02,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195631583] [2024-12-02 08:47:02,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:02,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:47:02,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:02,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:47:02,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:47:02,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-12-02 08:47:02,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 32 transitions, 117 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) [2024-12-02 08:47:02,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:02,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-12-02 08:47:02,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:02,758 INFO L124 PetriNetUnfolderBase]: 324/621 cut-off events. [2024-12-02 08:47:02,758 INFO L125 PetriNetUnfolderBase]: For 128/138 co-relation queries the response was YES. [2024-12-02 08:47:02,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 621 events. 324/621 cut-off events. For 128/138 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3135 event pairs, 102 based on Foata normal form. 27/621 useless extension candidates. Maximal degree in co-relation 1261. Up to 331 conditions per place. [2024-12-02 08:47:02,761 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 20 selfloop transitions, 4 changer transitions 4/43 dead transitions. [2024-12-02 08:47:02,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 43 transitions, 195 flow [2024-12-02 08:47:02,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:47:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 08:47:02,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-12-02 08:47:02,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-12-02 08:47:02,762 INFO L175 Difference]: Start difference. First operand has 58 places, 32 transitions, 117 flow. Second operand 4 states and 110 transitions. [2024-12-02 08:47:02,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 43 transitions, 195 flow [2024-12-02 08:47:02,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 163 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-12-02 08:47:02,764 INFO L231 Difference]: Finished difference. Result has 50 places, 34 transitions, 113 flow [2024-12-02 08:47:02,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2024-12-02 08:47:02,765 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2024-12-02 08:47:02,765 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 113 flow [2024-12-02 08:47:02,765 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) [2024-12-02 08:47:02,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:02,765 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] [2024-12-02 08:47:02,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:47:02,765 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)] === [2024-12-02 08:47:02,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:02,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1259166180, now seen corresponding path program 1 times [2024-12-02 08:47:02,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:02,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408335865] [2024-12-02 08:47:02,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:02,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:02,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:02,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408335865] [2024-12-02 08:47:02,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408335865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:02,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:02,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:47:02,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024616912] [2024-12-02 08:47:02,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:02,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:02,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:02,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:02,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:02,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-12-02 08:47:02,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 113 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) [2024-12-02 08:47:02,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:02,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-12-02 08:47:02,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:02,956 INFO L124 PetriNetUnfolderBase]: 218/436 cut-off events. [2024-12-02 08:47:02,956 INFO L125 PetriNetUnfolderBase]: For 147/192 co-relation queries the response was YES. [2024-12-02 08:47:02,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 436 events. 218/436 cut-off events. For 147/192 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1942 event pairs, 30 based on Foata normal form. 27/447 useless extension candidates. Maximal degree in co-relation 1018. Up to 193 conditions per place. [2024-12-02 08:47:02,958 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 19 selfloop transitions, 6 changer transitions 8/48 dead transitions. [2024-12-02 08:47:02,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 222 flow [2024-12-02 08:47:02,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:47:02,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 08:47:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-12-02 08:47:02,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-12-02 08:47:02,959 INFO L175 Difference]: Start difference. First operand has 50 places, 34 transitions, 113 flow. Second operand 5 states and 135 transitions. [2024-12-02 08:47:02,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 222 flow [2024-12-02 08:47:02,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 213 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-12-02 08:47:02,961 INFO L231 Difference]: Finished difference. Result has 54 places, 34 transitions, 131 flow [2024-12-02 08:47:02,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=54, PETRI_TRANSITIONS=34} [2024-12-02 08:47:02,962 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2024-12-02 08:47:02,962 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 131 flow [2024-12-02 08:47:02,962 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) [2024-12-02 08:47:02,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 08:47:02,962 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] [2024-12-02 08:47:02,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:47:02,962 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)] === [2024-12-02 08:47:02,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:02,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1870750541, now seen corresponding path program 1 times [2024-12-02 08:47:02,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515546071] [2024-12-02 08:47:02,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:02,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:03,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:03,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:03,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515546071] [2024-12-02 08:47:03,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515546071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:03,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:03,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:03,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150126019] [2024-12-02 08:47:03,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:03,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:03,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:03,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:03,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:03,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-12-02 08:47:03,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 131 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) [2024-12-02 08:47:03,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 08:47:03,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-12-02 08:47:03,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 08:47:03,139 INFO L124 PetriNetUnfolderBase]: 76/162 cut-off events. [2024-12-02 08:47:03,139 INFO L125 PetriNetUnfolderBase]: For 165/214 co-relation queries the response was YES. [2024-12-02 08:47:03,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 162 events. 76/162 cut-off events. For 165/214 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 474 event pairs, 2 based on Foata normal form. 16/174 useless extension candidates. Maximal degree in co-relation 422. Up to 56 conditions per place. [2024-12-02 08:47:03,139 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-12-02 08:47:03,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 40 transitions, 199 flow [2024-12-02 08:47:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:47:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 08:47:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2024-12-02 08:47:03,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-12-02 08:47:03,141 INFO L175 Difference]: Start difference. First operand has 54 places, 34 transitions, 131 flow. Second operand 6 states and 150 transitions. [2024-12-02 08:47:03,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 40 transitions, 199 flow [2024-12-02 08:47:03,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 174 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-12-02 08:47:03,142 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-12-02 08:47:03,142 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-12-02 08:47:03,143 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-12-02 08:47:03,143 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-12-02 08:47:03,143 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) [2024-12-02 08:47:03,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-12-02 08:47:03,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-12-02 08:47:03,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-12-02 08:47:03,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-12-02 08:47:03,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-12-02 08:47:03,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:47:03,146 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:03,150 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 08:47:03,150 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:47:03,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:47:03 BasicIcfg [2024-12-02 08:47:03,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:47:03,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:47:03,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:47:03,156 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:47:03,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:46:59" (3/4) ... [2024-12-02 08:47:03,158 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:47:03,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-12-02 08:47:03,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-12-02 08:47:03,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-12-02 08:47:03,164 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-12-02 08:47:03,164 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 08:47:03,164 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 08:47:03,164 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 08:47:03,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:47:03,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:47:03,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:47:03,215 INFO L158 Benchmark]: Toolchain (without parser) took 4880.98ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 118.8MB in the beginning and 285.8MB in the end (delta: -167.0MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2024-12-02 08:47:03,216 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:47:03,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.24ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 98.6MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:47:03,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.61ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:47:03,216 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:47:03,217 INFO L158 Benchmark]: RCFGBuilder took 337.20ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 76.5MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:47:03,217 INFO L158 Benchmark]: TraceAbstraction took 4104.84ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 76.1MB in the beginning and 290.0MB in the end (delta: -213.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2024-12-02 08:47:03,217 INFO L158 Benchmark]: Witness Printer took 59.55ms. Allocated memory is still 402.7MB. Free memory was 290.0MB in the beginning and 285.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:47:03,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.24ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 98.6MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.61ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 337.20ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 76.5MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4104.84ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 76.1MB in the beginning and 290.0MB in the end (delta: -213.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Witness Printer took 59.55ms. Allocated memory is still 402.7MB. Free memory was 290.0MB in the beginning and 285.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: 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: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 415 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 353 mSDsluCounter, 218 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 872 IncrementalHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 69 mSDtfsCounter, 872 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=5, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 729 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! [2024-12-02 08:47:03,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_874b23ce-a1b3-424b-ba97-9bba07103ec0/bin/uautomizer-verify-84ZbGMXZE1/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