./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/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_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/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_75406433-7e30-426c-9a50-b47c8e84ccfb/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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:38:19,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:38:19,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 07:38:19,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:38:19,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:38:19,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:38:19,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:38:19,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:38:19,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:38:19,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:38:19,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:38:19,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:38:19,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:38:19,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:38:19,120 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:38:19,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:38:19,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:38:19,122 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:38:19,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:38:19,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:38:19,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:38:19,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:38:19,123 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_75406433-7e30-426c-9a50-b47c8e84ccfb/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 -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 [2024-12-02 07:38:19,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:38:19,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:38:19,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:38:19,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:38:19,364 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:38:19,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-12-02 07:38:21,981 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/a6ee2182c/2ddeb3aad25d4915b77ebfe907a31396/FLAG9af176c2c [2024-12-02 07:38:22,223 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:38:22,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-12-02 07:38:22,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/a6ee2182c/2ddeb3aad25d4915b77ebfe907a31396/FLAG9af176c2c [2024-12-02 07:38:22,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/a6ee2182c/2ddeb3aad25d4915b77ebfe907a31396 [2024-12-02 07:38:22,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:38:22,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:38:22,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:38:22,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:38:22,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:38:22,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:22,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757a6dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22, skipping insertion in model container [2024-12-02 07:38:22,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:22,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:38:22,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:38:22,856 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:38:22,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:38:22,936 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:38:22,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22 WrapperNode [2024-12-02 07:38:22,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:38:22,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:38:22,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:38:22,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:38:22,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:22,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:22,975 INFO L138 Inliner]: procedures = 174, calls = 34, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 108 [2024-12-02 07:38:22,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:38:22,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:38:22,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:38:22,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:38:22,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:22,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:22,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,001 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 07:38:23,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,007 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:38:23,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:38:23,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:38:23,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:38:23,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (1/1) ... [2024-12-02 07:38:23,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:38:23,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:23,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:38:23,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-02 07:38:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-02 07:38:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 07:38:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:38:23,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:38:23,071 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 07:38:23,173 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:38:23,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:38:23,416 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:38:23,416 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:38:23,589 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:38:23,589 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:38:23,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:23 BoogieIcfgContainer [2024-12-02 07:38:23,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:38:23,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:38:23,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:38:23,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:38:23,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:38:22" (1/3) ... [2024-12-02 07:38:23,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8cc652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:38:23, skipping insertion in model container [2024-12-02 07:38:23,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:22" (2/3) ... [2024-12-02 07:38:23,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8cc652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:38:23, skipping insertion in model container [2024-12-02 07:38:23,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:23" (3/3) ... [2024-12-02 07:38:23,597 INFO L128 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-12-02 07:38:23,609 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:38:23,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i that has 3 procedures, 34 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-12-02 07:38:23,610 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:38:23,651 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:38:23,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 35 transitions, 78 flow [2024-12-02 07:38:23,700 INFO L124 PetriNetUnfolderBase]: 2/33 cut-off events. [2024-12-02 07:38:23,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:38:23,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 2/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-12-02 07:38:23,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 35 transitions, 78 flow [2024-12-02 07:38:23,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 72 flow [2024-12-02 07:38:23,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:38:23,723 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;@2aa8f71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:38:23,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-02 07:38:23,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:38:23,727 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-12-02 07:38:23,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:38:23,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:23,728 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 07:38:23,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:23,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash 10578262, now seen corresponding path program 1 times [2024-12-02 07:38:23,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:23,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438775953] [2024-12-02 07:38:23,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:24,065 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 07:38:24,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:24,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438775953] [2024-12-02 07:38:24,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438775953] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:24,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:24,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:38:24,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535104275] [2024-12-02 07:38:24,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:24,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:24,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:24,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:24,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-12-02 07:38:24,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 07:38:24,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:24,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-12-02 07:38:24,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:24,305 INFO L124 PetriNetUnfolderBase]: 183/413 cut-off events. [2024-12-02 07:38:24,305 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 07:38:24,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 413 events. 183/413 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2155 event pairs, 21 based on Foata normal form. 32/442 useless extension candidates. Maximal degree in co-relation 737. Up to 265 conditions per place. [2024-12-02 07:38:24,310 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2024-12-02 07:38:24,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 149 flow [2024-12-02 07:38:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:38:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:38:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-12-02 07:38:24,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2024-12-02 07:38:24,324 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 76 transitions. [2024-12-02 07:38:24,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 149 flow [2024-12-02 07:38:24,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:38:24,330 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-12-02 07:38:24,332 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-12-02 07:38:24,335 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-12-02 07:38:24,335 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-12-02 07:38:24,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 07:38:24,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:24,335 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:24,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:38:24,336 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:24,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:24,336 INFO L85 PathProgramCache]: Analyzing trace with hash 780217199, now seen corresponding path program 1 times [2024-12-02 07:38:24,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:24,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181326950] [2024-12-02 07:38:24,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:24,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:24,399 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 07:38:24,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:24,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181326950] [2024-12-02 07:38:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181326950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:24,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:24,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:38:24,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971619793] [2024-12-02 07:38:24,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:24,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:24,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:24,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:24,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:24,405 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-12-02 07:38:24,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 07:38:24,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:24,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-12-02 07:38:24,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:24,492 INFO L124 PetriNetUnfolderBase]: 159/371 cut-off events. [2024-12-02 07:38:24,492 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-12-02 07:38:24,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 371 events. 159/371 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1939 event pairs, 159 based on Foata normal form. 16/373 useless extension candidates. Maximal degree in co-relation 685. Up to 280 conditions per place. [2024-12-02 07:38:24,496 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 14 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2024-12-02 07:38:24,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 94 flow [2024-12-02 07:38:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:38:24,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:38:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-12-02 07:38:24,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-12-02 07:38:24,497 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 3 states and 56 transitions. [2024-12-02 07:38:24,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 94 flow [2024-12-02 07:38:24,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:38:24,499 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 58 flow [2024-12-02 07:38:24,499 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-12-02 07:38:24,500 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -4 predicate places. [2024-12-02 07:38:24,500 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 58 flow [2024-12-02 07:38:24,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 07:38:24,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:24,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:24,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:38:24,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:24,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash 780218539, now seen corresponding path program 1 times [2024-12-02 07:38:24,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:24,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665059786] [2024-12-02 07:38:24,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:24,707 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 07:38:24,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:24,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665059786] [2024-12-02 07:38:24,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665059786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:24,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:24,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:38:24,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624070878] [2024-12-02 07:38:24,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:24,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:38:24,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:24,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:38:24,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:38:24,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-12-02 07:38:24,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 07:38:24,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:24,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-12-02 07:38:24,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:25,036 INFO L124 PetriNetUnfolderBase]: 284/568 cut-off events. [2024-12-02 07:38:25,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:38:25,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 568 events. 284/568 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3002 event pairs, 51 based on Foata normal form. 0/546 useless extension candidates. Maximal degree in co-relation 1073. Up to 281 conditions per place. [2024-12-02 07:38:25,040 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 21 selfloop transitions, 2 changer transitions 32/63 dead transitions. [2024-12-02 07:38:25,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 63 transitions, 242 flow [2024-12-02 07:38:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:38:25,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 07:38:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2024-12-02 07:38:25,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-12-02 07:38:25,042 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 58 flow. Second operand 8 states and 145 transitions. [2024-12-02 07:38:25,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 63 transitions, 242 flow [2024-12-02 07:38:25,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 63 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:38:25,044 INFO L231 Difference]: Finished difference. Result has 44 places, 25 transitions, 71 flow [2024-12-02 07:38:25,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=71, PETRI_PLACES=44, PETRI_TRANSITIONS=25} [2024-12-02 07:38:25,044 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2024-12-02 07:38:25,045 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 71 flow [2024-12-02 07:38:25,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 07:38:25,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:25,045 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:25,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:38:25,045 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:25,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:25,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1552343050, now seen corresponding path program 1 times [2024-12-02 07:38:25,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:25,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571818541] [2024-12-02 07:38:25,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:25,265 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 07:38:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:25,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571818541] [2024-12-02 07:38:25,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571818541] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:25,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:25,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:38:25,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31734524] [2024-12-02 07:38:25,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:25,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:38:25,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:25,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:38:25,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:38:25,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-12-02 07:38:25,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 25 transitions, 71 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 07:38:25,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:25,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-12-02 07:38:25,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:25,704 INFO L124 PetriNetUnfolderBase]: 289/589 cut-off events. [2024-12-02 07:38:25,705 INFO L125 PetriNetUnfolderBase]: For 174/174 co-relation queries the response was YES. [2024-12-02 07:38:25,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 589 events. 289/589 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2986 event pairs, 45 based on Foata normal form. 20/607 useless extension candidates. Maximal degree in co-relation 1280. Up to 237 conditions per place. [2024-12-02 07:38:25,708 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 35 selfloop transitions, 6 changer transitions 34/82 dead transitions. [2024-12-02 07:38:25,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 82 transitions, 370 flow [2024-12-02 07:38:25,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:38:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 07:38:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 209 transitions. [2024-12-02 07:38:25,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4593406593406593 [2024-12-02 07:38:25,710 INFO L175 Difference]: Start difference. First operand has 44 places, 25 transitions, 71 flow. Second operand 13 states and 209 transitions. [2024-12-02 07:38:25,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 82 transitions, 370 flow [2024-12-02 07:38:25,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 82 transitions, 332 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-12-02 07:38:25,716 INFO L231 Difference]: Finished difference. Result has 54 places, 29 transitions, 110 flow [2024-12-02 07:38:25,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=29} [2024-12-02 07:38:25,717 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-12-02 07:38:25,717 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 29 transitions, 110 flow [2024-12-02 07:38:25,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 07:38:25,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:25,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:25,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:38:25,717 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:25,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:25,718 INFO L85 PathProgramCache]: Analyzing trace with hash -597439584, now seen corresponding path program 1 times [2024-12-02 07:38:25,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:25,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172940743] [2024-12-02 07:38:25,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:25,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:25,948 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 07:38:25,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:25,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172940743] [2024-12-02 07:38:25,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172940743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:25,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:25,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:38:25,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916413063] [2024-12-02 07:38:25,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:25,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:38:25,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:25,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:38:25,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:38:25,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-12-02 07:38:25,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 29 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 07:38:25,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:25,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-12-02 07:38:25,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:26,199 INFO L124 PetriNetUnfolderBase]: 295/593 cut-off events. [2024-12-02 07:38:26,199 INFO L125 PetriNetUnfolderBase]: For 537/540 co-relation queries the response was YES. [2024-12-02 07:38:26,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 593 events. 295/593 cut-off events. For 537/540 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3023 event pairs, 96 based on Foata normal form. 17/608 useless extension candidates. Maximal degree in co-relation 1511. Up to 204 conditions per place. [2024-12-02 07:38:26,201 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 25 selfloop transitions, 3 changer transitions 28/63 dead transitions. [2024-12-02 07:38:26,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 324 flow [2024-12-02 07:38:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:38:26,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 07:38:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2024-12-02 07:38:26,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48928571428571427 [2024-12-02 07:38:26,203 INFO L175 Difference]: Start difference. First operand has 54 places, 29 transitions, 110 flow. Second operand 8 states and 137 transitions. [2024-12-02 07:38:26,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 324 flow [2024-12-02 07:38:26,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 63 transitions, 292 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-12-02 07:38:26,209 INFO L231 Difference]: Finished difference. Result has 51 places, 25 transitions, 97 flow [2024-12-02 07:38:26,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=97, PETRI_PLACES=51, PETRI_TRANSITIONS=25} [2024-12-02 07:38:26,210 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2024-12-02 07:38:26,210 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 25 transitions, 97 flow [2024-12-02 07:38:26,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 07:38:26,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:26,210 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:26,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:38:26,210 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:26,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:26,211 INFO L85 PathProgramCache]: Analyzing trace with hash -596031322, now seen corresponding path program 1 times [2024-12-02 07:38:26,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:26,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316388096] [2024-12-02 07:38:26,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:26,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:26,319 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 07:38:26,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:26,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316388096] [2024-12-02 07:38:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316388096] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:26,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:26,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:38:26,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731421372] [2024-12-02 07:38:26,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:26,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:38:26,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:26,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:38:26,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:38:26,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-12-02 07:38:26,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 25 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 07:38:26,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:26,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-12-02 07:38:26,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:26,438 INFO L124 PetriNetUnfolderBase]: 165/358 cut-off events. [2024-12-02 07:38:26,438 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2024-12-02 07:38:26,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 358 events. 165/358 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1494 event pairs, 28 based on Foata normal form. 21/373 useless extension candidates. Maximal degree in co-relation 839. Up to 166 conditions per place. [2024-12-02 07:38:26,440 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 29 selfloop transitions, 4 changer transitions 1/41 dead transitions. [2024-12-02 07:38:26,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 203 flow [2024-12-02 07:38:26,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:38:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:38:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-12-02 07:38:26,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-12-02 07:38:26,441 INFO L175 Difference]: Start difference. First operand has 51 places, 25 transitions, 97 flow. Second operand 4 states and 80 transitions. [2024-12-02 07:38:26,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 203 flow [2024-12-02 07:38:26,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 163 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-12-02 07:38:26,443 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 87 flow [2024-12-02 07:38:26,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2024-12-02 07:38:26,444 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2024-12-02 07:38:26,444 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 87 flow [2024-12-02 07:38:26,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 07:38:26,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:26,444 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 07:38:26,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:38:26,444 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:26,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2126740209, now seen corresponding path program 1 times [2024-12-02 07:38:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:26,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392242224] [2024-12-02 07:38:26,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:26,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:26,614 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 07:38:26,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:26,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392242224] [2024-12-02 07:38:26,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392242224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:26,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:26,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:38:26,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068196516] [2024-12-02 07:38:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:26,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:38:26,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:26,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:38:26,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:38:26,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-12-02 07:38:26,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 07:38:26,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:26,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-12-02 07:38:26,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:26,722 INFO L124 PetriNetUnfolderBase]: 87/193 cut-off events. [2024-12-02 07:38:26,722 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-12-02 07:38:26,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 193 events. 87/193 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 585 event pairs, 19 based on Foata normal form. 14/203 useless extension candidates. Maximal degree in co-relation 456. Up to 71 conditions per place. [2024-12-02 07:38:26,723 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 6 changer transitions 1/39 dead transitions. [2024-12-02 07:38:26,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 180 flow [2024-12-02 07:38:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:38:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:38:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-12-02 07:38:26,724 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5085714285714286 [2024-12-02 07:38:26,724 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 87 flow. Second operand 5 states and 89 transitions. [2024-12-02 07:38:26,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 180 flow [2024-12-02 07:38:26,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 167 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-12-02 07:38:26,726 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 99 flow [2024-12-02 07:38:26,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2024-12-02 07:38:26,726 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-12-02 07:38:26,726 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 99 flow [2024-12-02 07:38:26,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 07:38:26,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:26,727 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] [2024-12-02 07:38:26,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:38:26,727 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:26,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 529047416, now seen corresponding path program 1 times [2024-12-02 07:38:26,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:26,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038776412] [2024-12-02 07:38:26,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:26,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:27,398 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 07:38:27,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:27,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038776412] [2024-12-02 07:38:27,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038776412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:27,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:27,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:38:27,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553054617] [2024-12-02 07:38:27,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:27,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:38:27,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:27,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:38:27,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:38:27,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-12-02 07:38:27,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 99 flow. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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 07:38:27,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:27,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-12-02 07:38:27,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:27,666 INFO L124 PetriNetUnfolderBase]: 82/206 cut-off events. [2024-12-02 07:38:27,666 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-12-02 07:38:27,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 206 events. 82/206 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 711 event pairs, 8 based on Foata normal form. 4/204 useless extension candidates. Maximal degree in co-relation 483. Up to 51 conditions per place. [2024-12-02 07:38:27,668 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 20 selfloop transitions, 4 changer transitions 17/52 dead transitions. [2024-12-02 07:38:27,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 241 flow [2024-12-02 07:38:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:38:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:38:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2024-12-02 07:38:27,669 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-12-02 07:38:27,669 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 99 flow. Second operand 9 states and 150 transitions. [2024-12-02 07:38:27,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 241 flow [2024-12-02 07:38:27,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 207 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-12-02 07:38:27,671 INFO L231 Difference]: Finished difference. Result has 47 places, 27 transitions, 89 flow [2024-12-02 07:38:27,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=89, PETRI_PLACES=47, PETRI_TRANSITIONS=27} [2024-12-02 07:38:27,672 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2024-12-02 07:38:27,672 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 27 transitions, 89 flow [2024-12-02 07:38:27,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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 07:38:27,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:27,672 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] [2024-12-02 07:38:27,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:38:27,673 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:27,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:27,673 INFO L85 PathProgramCache]: Analyzing trace with hash 87487020, now seen corresponding path program 2 times [2024-12-02 07:38:27,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:27,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599042360] [2024-12-02 07:38:27,673 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:38:27,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:27,747 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:38:27,747 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 07:38:27,747 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:38:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:38:27,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:38:27,839 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:38:27,840 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-12-02 07:38:27,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-12-02 07:38:27,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-12-02 07:38:27,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-12-02 07:38:27,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-12-02 07:38:27,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-12-02 07:38:27,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:38:27,843 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:27,900 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 07:38:27,901 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:38:27,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:38:27 BasicIcfg [2024-12-02 07:38:27,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:38:27,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:38:27,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:38:27,906 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:38:27,907 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:23" (3/4) ... [2024-12-02 07:38:27,908 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:38:27,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:38:27,910 INFO L158 Benchmark]: Toolchain (without parser) took 5349.81ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 116.4MB in the beginning and 333.2MB in the end (delta: -216.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-12-02 07:38:27,910 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:27,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.09ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 93.6MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:38:27,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.97ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 91.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:27,911 INFO L158 Benchmark]: Boogie Preprocessor took 39.62ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 88.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:27,911 INFO L158 Benchmark]: RCFGBuilder took 573.74ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 104.6MB in the end (delta: -16.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-12-02 07:38:27,911 INFO L158 Benchmark]: TraceAbstraction took 4314.26ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 104.1MB in the beginning and 333.2MB in the end (delta: -229.2MB). Peak memory consumption was 154.2MB. Max. memory is 16.1GB. [2024-12-02 07:38:27,911 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 369.1MB. Free memory was 333.2MB in the beginning and 333.2MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:27,913 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 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.09ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 93.6MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.97ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 91.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.62ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 88.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 573.74ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 104.6MB in the end (delta: -16.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4314.26ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 104.1MB in the beginning and 333.2MB in the end (delta: -229.2MB). Peak memory consumption was 154.2MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 369.1MB. Free memory was 333.2MB in the beginning and 333.2MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L807] 0 pthread_t t2305; [L808] FCALL, FORK 0 pthread_create(&t2305, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2305=-2, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L809] 0 pthread_t t2306; [L810] FCALL, FORK 0 pthread_create(&t2306, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2305=-2, t2306=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L749] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L766] 2 __unbuffered_p1_EAX = x VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EBX = y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305=-2, t2306=-1, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L814] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L814] RET 0 assume_abort_if_not(main$tmp_guard0) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305=-2, t2306=-1, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L823] 0 main$tmp_guard1 = !(__unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305=-2, t2306=-1, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L825] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L17] 0 __assert_fail ("0", "safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 805]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 262 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 674 IncrementalHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 14 mSDtfsCounter, 674 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=4, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 07:38:27,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/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_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:38:29,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:38:29,957 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-12-02 07:38:29,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:38:29,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:38:29,983 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:38:29,984 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:38:29,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:38:29,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:38:29,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:38:29,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:38:29,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:38:29,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:38:29,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 07:38:29,985 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:38:29,986 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:38:29,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:38:29,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:38:29,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:38:29,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:38:29,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:38:29,988 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_75406433-7e30-426c-9a50-b47c8e84ccfb/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 -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 [2024-12-02 07:38:30,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:38:30,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:38:30,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:38:30,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:38:30,224 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:38:30,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-12-02 07:38:32,912 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/49627a20e/cbae1b0251b74299a8f10c9057c2dd14/FLAG1ebca1c42 [2024-12-02 07:38:33,163 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:38:33,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-12-02 07:38:33,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/49627a20e/cbae1b0251b74299a8f10c9057c2dd14/FLAG1ebca1c42 [2024-12-02 07:38:33,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/data/49627a20e/cbae1b0251b74299a8f10c9057c2dd14 [2024-12-02 07:38:33,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:38:33,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:38:33,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:38:33,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:38:33,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:38:33,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abd11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33, skipping insertion in model container [2024-12-02 07:38:33,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:38:33,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:38:33,512 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:38:33,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:38:33,595 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:38:33,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33 WrapperNode [2024-12-02 07:38:33,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:38:33,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:38:33,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:38:33,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:38:33,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,635 INFO L138 Inliner]: procedures = 175, calls = 34, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 109 [2024-12-02 07:38:33,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:38:33,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:38:33,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:38:33,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:38:33,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,662 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 07:38:33,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,670 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:38:33,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:38:33,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:38:33,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:38:33,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (1/1) ... [2024-12-02 07:38:33,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:38:33,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:33,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:38:33,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:38:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 07:38:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:38:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:38:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-02 07:38:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-02 07:38:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-02 07:38:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-02 07:38:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 07:38:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:38:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:38:33,742 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 07:38:33,861 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:38:33,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:38:34,112 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:38:34,113 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:38:34,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:38:34,310 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:38:34,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:34 BoogieIcfgContainer [2024-12-02 07:38:34,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:38:34,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:38:34,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:38:34,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:38:34,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:38:33" (1/3) ... [2024-12-02 07:38:34,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58576061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:38:34, skipping insertion in model container [2024-12-02 07:38:34,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:33" (2/3) ... [2024-12-02 07:38:34,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58576061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:38:34, skipping insertion in model container [2024-12-02 07:38:34,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:34" (3/3) ... [2024-12-02 07:38:34,319 INFO L128 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-12-02 07:38:34,333 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:38:34,334 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i that has 3 procedures, 34 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-12-02 07:38:34,334 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:38:34,377 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:38:34,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 35 transitions, 78 flow [2024-12-02 07:38:34,427 INFO L124 PetriNetUnfolderBase]: 2/33 cut-off events. [2024-12-02 07:38:34,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:38:34,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 2/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-12-02 07:38:34,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 35 transitions, 78 flow [2024-12-02 07:38:34,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 72 flow [2024-12-02 07:38:34,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:38:34,449 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;@38244e7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:38:34,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-02 07:38:34,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:38:34,453 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-12-02 07:38:34,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:38:34,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:34,454 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 07:38:34,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:34,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:34,459 INFO L85 PathProgramCache]: Analyzing trace with hash 10639830, now seen corresponding path program 1 times [2024-12-02 07:38:34,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:34,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517581389] [2024-12-02 07:38:34,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:34,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:34,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:34,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:34,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:38:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:34,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:38:34,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:34,601 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 07:38:34,601 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:34,601 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:34,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517581389] [2024-12-02 07:38:34,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517581389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:34,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:34,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:38:34,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666410731] [2024-12-02 07:38:34,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:34,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:34,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:34,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:34,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:34,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-12-02 07:38:34,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 07:38:34,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:34,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-12-02 07:38:34,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:34,826 INFO L124 PetriNetUnfolderBase]: 183/413 cut-off events. [2024-12-02 07:38:34,826 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 07:38:34,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 413 events. 183/413 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2155 event pairs, 21 based on Foata normal form. 32/442 useless extension candidates. Maximal degree in co-relation 737. Up to 265 conditions per place. [2024-12-02 07:38:34,831 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 25 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2024-12-02 07:38:34,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 149 flow [2024-12-02 07:38:34,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:38:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:38:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-12-02 07:38:34,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2024-12-02 07:38:34,845 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 76 transitions. [2024-12-02 07:38:34,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 149 flow [2024-12-02 07:38:34,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:38:34,851 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-12-02 07:38:34,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-12-02 07:38:34,857 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-12-02 07:38:34,857 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-12-02 07:38:34,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 07:38:34,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:34,857 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:34,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:38:35,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:35,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:35,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1830467087, now seen corresponding path program 1 times [2024-12-02 07:38:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953097731] [2024-12-02 07:38:35,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:35,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:35,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:35,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:35,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:38:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:35,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:38:35,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:35,164 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 07:38:35,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:35,165 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:35,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953097731] [2024-12-02 07:38:35,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953097731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:35,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:35,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:38:35,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607084801] [2024-12-02 07:38:35,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:35,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:35,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:35,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:35,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:35,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-12-02 07:38:35,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 07:38:35,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:35,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-12-02 07:38:35,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:35,257 INFO L124 PetriNetUnfolderBase]: 159/371 cut-off events. [2024-12-02 07:38:35,257 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-12-02 07:38:35,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 371 events. 159/371 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1957 event pairs, 159 based on Foata normal form. 16/373 useless extension candidates. Maximal degree in co-relation 685. Up to 280 conditions per place. [2024-12-02 07:38:35,260 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 14 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2024-12-02 07:38:35,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 94 flow [2024-12-02 07:38:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:38:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:38:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-12-02 07:38:35,262 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-12-02 07:38:35,262 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 3 states and 56 transitions. [2024-12-02 07:38:35,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 94 flow [2024-12-02 07:38:35,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:38:35,264 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 58 flow [2024-12-02 07:38:35,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-12-02 07:38:35,265 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -4 predicate places. [2024-12-02 07:38:35,265 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 58 flow [2024-12-02 07:38:35,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 07:38:35,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:35,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:35,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:38:35,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:35,466 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:35,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1830465747, now seen corresponding path program 1 times [2024-12-02 07:38:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254238704] [2024-12-02 07:38:35,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:35,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:35,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:35,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:38:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:35,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:38:35,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:35,591 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 07:38:35,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:35,591 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:35,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254238704] [2024-12-02 07:38:35,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254238704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:35,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:35,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:38:35,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847892798] [2024-12-02 07:38:35,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:35,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:38:35,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:35,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:38:35,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:38:35,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-12-02 07:38:35,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 07:38:35,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:35,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-12-02 07:38:35,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:35,766 INFO L124 PetriNetUnfolderBase]: 198/436 cut-off events. [2024-12-02 07:38:35,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:38:35,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 436 events. 198/436 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2101 event pairs, 38 based on Foata normal form. 25/453 useless extension candidates. Maximal degree in co-relation 810. Up to 191 conditions per place. [2024-12-02 07:38:35,770 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 31 selfloop transitions, 4 changer transitions 1/44 dead transitions. [2024-12-02 07:38:35,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 168 flow [2024-12-02 07:38:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:38:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:38:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-12-02 07:38:35,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5857142857142857 [2024-12-02 07:38:35,772 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 58 flow. Second operand 4 states and 82 transitions. [2024-12-02 07:38:35,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 168 flow [2024-12-02 07:38:35,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 167 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:38:35,774 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 83 flow [2024-12-02 07:38:35,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2024-12-02 07:38:35,775 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-12-02 07:38:35,775 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 83 flow [2024-12-02 07:38:35,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 07:38:35,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:35,776 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:35,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 07:38:35,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:35,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:35,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1519905488, now seen corresponding path program 1 times [2024-12-02 07:38:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:35,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090608036] [2024-12-02 07:38:35,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:35,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:35,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:35,979 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:35,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:38:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:36,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:38:36,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:36,100 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 07:38:36,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:36,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090608036] [2024-12-02 07:38:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090608036] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:36,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:36,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:38:36,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971426702] [2024-12-02 07:38:36,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:36,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:38:36,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:36,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:38:36,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:38:36,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-12-02 07:38:36,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 07:38:36,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:36,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-12-02 07:38:36,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:36,251 INFO L124 PetriNetUnfolderBase]: 102/223 cut-off events. [2024-12-02 07:38:36,252 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-12-02 07:38:36,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 223 events. 102/223 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 759 event pairs, 26 based on Foata normal form. 16/234 useless extension candidates. Maximal degree in co-relation 512. Up to 86 conditions per place. [2024-12-02 07:38:36,253 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 26 selfloop transitions, 6 changer transitions 1/41 dead transitions. [2024-12-02 07:38:36,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 180 flow [2024-12-02 07:38:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:38:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:38:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions. [2024-12-02 07:38:36,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2024-12-02 07:38:36,255 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 83 flow. Second operand 5 states and 90 transitions. [2024-12-02 07:38:36,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 180 flow [2024-12-02 07:38:36,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 41 transitions, 171 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-12-02 07:38:36,257 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 99 flow [2024-12-02 07:38:36,257 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2024-12-02 07:38:36,258 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-12-02 07:38:36,258 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 99 flow [2024-12-02 07:38:36,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 07:38:36,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:36,258 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] [2024-12-02 07:38:36,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:38:36,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:36,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:36,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash 238249146, now seen corresponding path program 1 times [2024-12-02 07:38:36,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:36,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594191900] [2024-12-02 07:38:36,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:36,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:36,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:36,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:36,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:38:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:36,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:38:36,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:36,797 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 07:38:36,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:36,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:36,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594191900] [2024-12-02 07:38:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594191900] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:36,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:38:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935435276] [2024-12-02 07:38:36,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:36,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:38:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:36,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:38:36,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:38:36,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-12-02 07:38:36,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 99 flow. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 07:38:36,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:36,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-12-02 07:38:36,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:37,126 INFO L124 PetriNetUnfolderBase]: 99/247 cut-off events. [2024-12-02 07:38:37,127 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-12-02 07:38:37,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 247 events. 99/247 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 925 event pairs, 19 based on Foata normal form. 4/247 useless extension candidates. Maximal degree in co-relation 561. Up to 59 conditions per place. [2024-12-02 07:38:37,128 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 23 selfloop transitions, 4 changer transitions 20/58 dead transitions. [2024-12-02 07:38:37,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 267 flow [2024-12-02 07:38:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:38:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:38:37,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2024-12-02 07:38:37,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-12-02 07:38:37,130 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 99 flow. Second operand 10 states and 168 transitions. [2024-12-02 07:38:37,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 267 flow [2024-12-02 07:38:37,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 230 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-12-02 07:38:37,133 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 91 flow [2024-12-02 07:38:37,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=91, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2024-12-02 07:38:37,134 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2024-12-02 07:38:37,134 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 91 flow [2024-12-02 07:38:37,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 07:38:37,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:37,134 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:37,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 07:38:37,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:37,335 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:37,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:37,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1444464288, now seen corresponding path program 2 times [2024-12-02 07:38:37,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:37,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889161699] [2024-12-02 07:38:37,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:38:37,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:37,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:37,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:37,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:38:37,414 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:38:37,414 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:38:37,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 07:38:37,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:37,550 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 07:38:37,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:37,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:37,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889161699] [2024-12-02 07:38:37,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889161699] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:37,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:37,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:38:37,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60321047] [2024-12-02 07:38:37,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:37,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:38:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:37,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:38:37,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:38:37,581 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2024-12-02 07:38:37,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 91 flow. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 07:38:37,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:38:37,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2024-12-02 07:38:37,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:38:37,805 INFO L124 PetriNetUnfolderBase]: 169/357 cut-off events. [2024-12-02 07:38:37,805 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-12-02 07:38:37,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 357 events. 169/357 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1317 event pairs, 69 based on Foata normal form. 4/359 useless extension candidates. Maximal degree in co-relation 841. Up to 133 conditions per place. [2024-12-02 07:38:37,807 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 24 selfloop transitions, 3 changer transitions 30/62 dead transitions. [2024-12-02 07:38:37,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 62 transitions, 309 flow [2024-12-02 07:38:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:38:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 07:38:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 112 transitions. [2024-12-02 07:38:37,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2024-12-02 07:38:37,808 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 91 flow. Second operand 7 states and 112 transitions. [2024-12-02 07:38:37,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 62 transitions, 309 flow [2024-12-02 07:38:37,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 279 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-12-02 07:38:37,811 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 97 flow [2024-12-02 07:38:37,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=97, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2024-12-02 07:38:37,812 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2024-12-02 07:38:37,812 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 97 flow [2024-12-02 07:38:37,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 07:38:37,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:38:37,812 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] [2024-12-02 07:38:37,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:38:38,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:38,013 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-02 07:38:38,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:38,013 INFO L85 PathProgramCache]: Analyzing trace with hash -869043406, now seen corresponding path program 3 times [2024-12-02 07:38:38,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:38,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259352600] [2024-12-02 07:38:38,014 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:38:38,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:38,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:38:38,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:38:38,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:38:38,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:38:38,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 07:38:38,082 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:38:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:38:38,145 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 07:38:38,145 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:38:38,146 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-12-02 07:38:38,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-12-02 07:38:38,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-12-02 07:38:38,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-12-02 07:38:38,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-12-02 07:38:38,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-12-02 07:38:38,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 07:38:38,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:38:38,349 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-12-02 07:38:38,393 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 07:38:38,393 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:38:38,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:38:38 BasicIcfg [2024-12-02 07:38:38,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:38:38,398 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:38:38,398 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:38:38,398 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:38:38,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:34" (3/4) ... [2024-12-02 07:38:38,400 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:38:38,401 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:38:38,402 INFO L158 Benchmark]: Toolchain (without parser) took 5208.31ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 68.1MB in the beginning and 86.1MB in the end (delta: -18.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-12-02 07:38:38,402 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:38,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.96ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 45.2MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:38:38,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.44ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 43.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:38,403 INFO L158 Benchmark]: Boogie Preprocessor took 42.30ms. Allocated memory is still 92.3MB. Free memory was 43.0MB in the beginning and 40.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:38,403 INFO L158 Benchmark]: RCFGBuilder took 631.40ms. Allocated memory is still 92.3MB. Free memory was 40.3MB in the beginning and 44.4MB in the end (delta: -4.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-02 07:38:38,404 INFO L158 Benchmark]: TraceAbstraction took 4085.39ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 43.9MB in the beginning and 86.2MB in the end (delta: -42.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-12-02 07:38:38,404 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 86.1MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:38:38,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.96ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 45.2MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.44ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 43.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.30ms. Allocated memory is still 92.3MB. Free memory was 43.0MB in the beginning and 40.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 631.40ms. Allocated memory is still 92.3MB. Free memory was 40.3MB in the beginning and 44.4MB in the end (delta: -4.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4085.39ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 43.9MB in the beginning and 86.2MB in the end (delta: -42.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 86.1MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L807] 0 pthread_t t2305; [L808] FCALL, FORK 0 pthread_create(&t2305, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2305=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L809] 0 pthread_t t2306; [L810] FCALL, FORK 0 pthread_create(&t2306, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2305=0, t2306=1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L749] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L766] 2 __unbuffered_p1_EAX = x VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EBX = y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305=0, t2306=1, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L814] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L814] RET 0 assume_abort_if_not(main$tmp_guard0) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305=0, t2306=1, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L823] 0 main$tmp_guard1 = !(__unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305=0, t2306=1, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L825] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L17] 0 __assert_fail ("0", "safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 805]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 544 IncrementalHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 15 mSDtfsCounter, 544 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=4, InterpolantAutomatonStates: 32, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 15 NumberOfNonLiveVariables, 483 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 07:38:38,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75406433-7e30-426c-9a50-b47c8e84ccfb/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: UNKNOWN: Overapproximated counterexample