./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/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_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/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_75f3a914-6e84-4884-b197-8eddb5c98682/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 6d67b26c9d6dbfd265b32dfe97063f0b6065a61c5709b8120357b3eaad40bf46 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:31:05,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:31:05,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 15:31:05,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:31:05,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:31:05,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:31:05,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:31:05,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:31:05,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:31:05,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:31:05,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:31:05,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:31:05,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:31:05,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:31:05,106 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:31:05,107 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:31:05,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:31:05,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:31:05,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:31:05,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:31:05,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:31:05,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:31:05,109 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_75f3a914-6e84-4884-b197-8eddb5c98682/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 -> 6d67b26c9d6dbfd265b32dfe97063f0b6065a61c5709b8120357b3eaad40bf46 [2024-12-02 15:31:05,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:31:05,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:31:05,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:31:05,385 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:31:05,386 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:31:05,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-02 15:31:08,131 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/data/4f206dd37/feeedcc46ab244668bb4b2641c9cd0e2/FLAG032d8b24b [2024-12-02 15:31:08,377 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:31:08,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-02 15:31:08,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/data/4f206dd37/feeedcc46ab244668bb4b2641c9cd0e2/FLAG032d8b24b [2024-12-02 15:31:08,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/data/4f206dd37/feeedcc46ab244668bb4b2641c9cd0e2 [2024-12-02 15:31:08,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:31:08,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:31:08,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:31:08,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:31:08,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:31:08,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391e017e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08, skipping insertion in model container [2024-12-02 15:31:08,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:31:08,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:31:08,714 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:31:08,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:31:08,785 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:31:08,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08 WrapperNode [2024-12-02 15:31:08,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:31:08,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:31:08,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:31:08,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:31:08,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,813 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-12-02 15:31:08,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:31:08,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:31:08,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:31:08,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:31:08,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,835 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 15:31:08,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,841 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:31:08,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:31:08,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:31:08,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:31:08,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (1/1) ... [2024-12-02 15:31:08,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:31:08,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:31:08,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:31:08,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:31:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 15:31:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:31:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-02 15:31:08,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-02 15:31:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-02 15:31:08,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-02 15:31:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-12-02 15:31:08,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-12-02 15:31:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:31:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 15:31:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:31:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:31:08,901 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 15:31:09,000 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:31:09,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:31:09,143 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:31:09,143 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:31:09,212 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:31:09,213 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 15:31:09,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:09 BoogieIcfgContainer [2024-12-02 15:31:09,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:31:09,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:31:09,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:31:09,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:31:09,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:31:08" (1/3) ... [2024-12-02 15:31:09,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1247fdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:09, skipping insertion in model container [2024-12-02 15:31:09,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:08" (2/3) ... [2024-12-02 15:31:09,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1247fdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:09, skipping insertion in model container [2024-12-02 15:31:09,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:09" (3/3) ... [2024-12-02 15:31:09,222 INFO L128 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-12-02 15:31:09,235 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:31:09,236 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 15:31:09,237 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:31:09,274 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 15:31:09,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-12-02 15:31:09,335 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-12-02 15:31:09,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:09,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-12-02 15:31:09,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-12-02 15:31:09,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-12-02 15:31:09,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:31:09,363 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;@4a465403, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:31:09,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-02 15:31:09,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:31:09,378 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-12-02 15:31:09,385 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:09,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:09,386 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:09,386 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:09,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-12-02 15:31:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:09,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419700244] [2024-12-02 15:31:09,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:09,605 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 15:31:09,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419700244] [2024-12-02 15:31:09,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419700244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:09,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:09,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:31:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276209695] [2024-12-02 15:31:09,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:09,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:31:09,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:09,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:31:09,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:31:09,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-12-02 15:31:09,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 15:31:09,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:09,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-12-02 15:31:09,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:09,721 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-12-02 15:31:09,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:09,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-12-02 15:31:09,725 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-12-02 15:31:09,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-12-02 15:31:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:31:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:31:09,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-12-02 15:31:09,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-12-02 15:31:09,739 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-12-02 15:31:09,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-12-02 15:31:09,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 15:31:09,746 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-12-02 15:31:09,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-12-02 15:31:09,752 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-12-02 15:31:09,752 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-12-02 15:31:09,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 15:31:09,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:09,752 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:09,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:31:09,753 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:09,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:09,753 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-12-02 15:31:09,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:09,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841042637] [2024-12-02 15:31:09,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:09,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:10,045 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 15:31:10,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:10,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841042637] [2024-12-02 15:31:10,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841042637] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:10,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:10,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:10,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864275942] [2024-12-02 15:31:10,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:10,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:31:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:10,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:31:10,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:31:10,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-12-02 15:31:10,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:10,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:10,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-12-02 15:31:10,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:10,583 INFO L124 PetriNetUnfolderBase]: 1409/2658 cut-off events. [2024-12-02 15:31:10,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:10,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4872 conditions, 2658 events. 1409/2658 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19409 event pairs, 331 based on Foata normal form. 0/2557 useless extension candidates. Maximal degree in co-relation 4866. Up to 812 conditions per place. [2024-12-02 15:31:10,601 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 29 selfloop transitions, 6 changer transitions 55/104 dead transitions. [2024-12-02 15:31:10,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 400 flow [2024-12-02 15:31:10,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:31:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 15:31:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2024-12-02 15:31:10,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6563307493540051 [2024-12-02 15:31:10,604 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 254 transitions. [2024-12-02 15:31:10,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 400 flow [2024-12-02 15:31:10,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 104 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:31:10,607 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-12-02 15:31:10,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-12-02 15:31:10,608 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-12-02 15:31:10,608 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-12-02 15:31:10,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:10,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:10,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:10,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:31:10,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:10,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2045748091, now seen corresponding path program 1 times [2024-12-02 15:31:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080977887] [2024-12-02 15:31:10,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:10,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:10,792 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 15:31:10,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:10,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080977887] [2024-12-02 15:31:10,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080977887] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:10,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:10,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:31:10,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787948028] [2024-12-02 15:31:10,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:10,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:31:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:10,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:31:10,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:31:10,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-12-02 15:31:10,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:10,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:10,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-12-02 15:31:10,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:11,271 INFO L124 PetriNetUnfolderBase]: 912/1868 cut-off events. [2024-12-02 15:31:11,271 INFO L125 PetriNetUnfolderBase]: For 2956/2969 co-relation queries the response was YES. [2024-12-02 15:31:11,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5325 conditions, 1868 events. 912/1868 cut-off events. For 2956/2969 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 13624 event pairs, 163 based on Foata normal form. 82/1938 useless extension candidates. Maximal degree in co-relation 5310. Up to 592 conditions per place. [2024-12-02 15:31:11,284 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 37 selfloop transitions, 9 changer transitions 52/112 dead transitions. [2024-12-02 15:31:11,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 112 transitions, 775 flow [2024-12-02 15:31:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:31:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 15:31:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 268 transitions. [2024-12-02 15:31:11,287 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6232558139534884 [2024-12-02 15:31:11,288 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 268 transitions. [2024-12-02 15:31:11,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 112 transitions, 775 flow [2024-12-02 15:31:11,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 112 transitions, 669 flow, removed 25 selfloop flow, removed 4 redundant places. [2024-12-02 15:31:11,300 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 227 flow [2024-12-02 15:31:11,300 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=227, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2024-12-02 15:31:11,301 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-12-02 15:31:11,301 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 227 flow [2024-12-02 15:31:11,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:11,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:11,301 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 15:31:11,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:31:11,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:11,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2112389541, now seen corresponding path program 1 times [2024-12-02 15:31:11,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:11,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339914888] [2024-12-02 15:31:11,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:11,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:11,466 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 15:31:11,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:11,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339914888] [2024-12-02 15:31:11,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339914888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:11,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:11,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:31:11,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794192752] [2024-12-02 15:31:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:11,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:31:11,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:11,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:31:11,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:31:11,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-12-02 15:31:11,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:11,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:11,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-12-02 15:31:11,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:11,850 INFO L124 PetriNetUnfolderBase]: 717/1486 cut-off events. [2024-12-02 15:31:11,850 INFO L125 PetriNetUnfolderBase]: For 3784/3787 co-relation queries the response was YES. [2024-12-02 15:31:11,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4598 conditions, 1486 events. 717/1486 cut-off events. For 3784/3787 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10114 event pairs, 191 based on Foata normal form. 36/1498 useless extension candidates. Maximal degree in co-relation 4576. Up to 542 conditions per place. [2024-12-02 15:31:11,863 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 45 selfloop transitions, 11 changer transitions 32/102 dead transitions. [2024-12-02 15:31:11,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 102 transitions, 719 flow [2024-12-02 15:31:11,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:31:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 15:31:11,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-12-02 15:31:11,866 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5976744186046512 [2024-12-02 15:31:11,866 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 227 flow. Second operand 10 states and 257 transitions. [2024-12-02 15:31:11,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 102 transitions, 719 flow [2024-12-02 15:31:11,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 657 flow, removed 31 selfloop flow, removed 3 redundant places. [2024-12-02 15:31:11,883 INFO L231 Difference]: Finished difference. Result has 74 places, 49 transitions, 325 flow [2024-12-02 15:31:11,883 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=325, PETRI_PLACES=74, PETRI_TRANSITIONS=49} [2024-12-02 15:31:11,884 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-12-02 15:31:11,884 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 49 transitions, 325 flow [2024-12-02 15:31:11,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:11,884 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:11,884 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 15:31:11,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:31:11,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:11,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:11,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2145353382, now seen corresponding path program 1 times [2024-12-02 15:31:11,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:11,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146949987] [2024-12-02 15:31:11,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:12,043 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 15:31:12,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146949987] [2024-12-02 15:31:12,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146949987] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:12,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:12,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:31:12,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529964734] [2024-12-02 15:31:12,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:12,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:31:12,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:12,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:31:12,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:31:12,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-12-02 15:31:12,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 49 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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 15:31:12,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:12,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-12-02 15:31:12,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:12,350 INFO L124 PetriNetUnfolderBase]: 801/1720 cut-off events. [2024-12-02 15:31:12,350 INFO L125 PetriNetUnfolderBase]: For 4447/4459 co-relation queries the response was YES. [2024-12-02 15:31:12,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5330 conditions, 1720 events. 801/1720 cut-off events. For 4447/4459 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 12813 event pairs, 165 based on Foata normal form. 34/1711 useless extension candidates. Maximal degree in co-relation 5300. Up to 429 conditions per place. [2024-12-02 15:31:12,360 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 10 changer transitions 23/86 dead transitions. [2024-12-02 15:31:12,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 86 transitions, 657 flow [2024-12-02 15:31:12,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:31:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 15:31:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2024-12-02 15:31:12,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6212624584717608 [2024-12-02 15:31:12,362 INFO L175 Difference]: Start difference. First operand has 74 places, 49 transitions, 325 flow. Second operand 7 states and 187 transitions. [2024-12-02 15:31:12,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 86 transitions, 657 flow [2024-12-02 15:31:12,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 600 flow, removed 26 selfloop flow, removed 10 redundant places. [2024-12-02 15:31:12,377 INFO L231 Difference]: Finished difference. Result has 67 places, 44 transitions, 272 flow [2024-12-02 15:31:12,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=272, PETRI_PLACES=67, PETRI_TRANSITIONS=44} [2024-12-02 15:31:12,377 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-12-02 15:31:12,378 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 44 transitions, 272 flow [2024-12-02 15:31:12,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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 15:31:12,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:12,378 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 15:31:12,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:31:12,378 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:12,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:12,379 INFO L85 PathProgramCache]: Analyzing trace with hash -685666594, now seen corresponding path program 1 times [2024-12-02 15:31:12,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:12,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132149944] [2024-12-02 15:31:12,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:12,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:12,498 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 15:31:12,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:12,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132149944] [2024-12-02 15:31:12,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132149944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:12,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:12,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:31:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300118992] [2024-12-02 15:31:12,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:12,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:31:12,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:12,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:31:12,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:31:12,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-12-02 15:31:12,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 44 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:12,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:12,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-12-02 15:31:12,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:12,802 INFO L124 PetriNetUnfolderBase]: 496/1159 cut-off events. [2024-12-02 15:31:12,803 INFO L125 PetriNetUnfolderBase]: For 2234/2253 co-relation queries the response was YES. [2024-12-02 15:31:12,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3306 conditions, 1159 events. 496/1159 cut-off events. For 2234/2253 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 8437 event pairs, 123 based on Foata normal form. 40/1171 useless extension candidates. Maximal degree in co-relation 3281. Up to 282 conditions per place. [2024-12-02 15:31:12,809 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 4 changer transitions 37/85 dead transitions. [2024-12-02 15:31:12,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 85 transitions, 562 flow [2024-12-02 15:31:12,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:31:12,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 15:31:12,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2024-12-02 15:31:12,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6227390180878553 [2024-12-02 15:31:12,811 INFO L175 Difference]: Start difference. First operand has 67 places, 44 transitions, 272 flow. Second operand 9 states and 241 transitions. [2024-12-02 15:31:12,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 85 transitions, 562 flow [2024-12-02 15:31:12,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 85 transitions, 496 flow, removed 16 selfloop flow, removed 9 redundant places. [2024-12-02 15:31:12,818 INFO L231 Difference]: Finished difference. Result has 70 places, 39 transitions, 198 flow [2024-12-02 15:31:12,818 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=70, PETRI_TRANSITIONS=39} [2024-12-02 15:31:12,819 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-12-02 15:31:12,819 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 39 transitions, 198 flow [2024-12-02 15:31:12,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:12,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:12,819 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 15:31:12,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:31:12,820 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:12,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:12,820 INFO L85 PathProgramCache]: Analyzing trace with hash 215485094, now seen corresponding path program 2 times [2024-12-02 15:31:12,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:12,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574842375] [2024-12-02 15:31:12,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:31:12,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:12,833 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:31:12,833 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:31:12,951 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 15:31:12,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:12,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574842375] [2024-12-02 15:31:12,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574842375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:12,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:12,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:12,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257294479] [2024-12-02 15:31:12,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:12,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:31:12,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:12,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:31:12,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:31:12,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-12-02 15:31:12,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 39 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:12,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:12,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-12-02 15:31:12,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:13,111 INFO L124 PetriNetUnfolderBase]: 213/530 cut-off events. [2024-12-02 15:31:13,111 INFO L125 PetriNetUnfolderBase]: For 849/870 co-relation queries the response was YES. [2024-12-02 15:31:13,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 530 events. 213/530 cut-off events. For 849/870 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3165 event pairs, 110 based on Foata normal form. 12/499 useless extension candidates. Maximal degree in co-relation 1468. Up to 270 conditions per place. [2024-12-02 15:31:13,114 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 19 selfloop transitions, 3 changer transitions 15/60 dead transitions. [2024-12-02 15:31:13,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 350 flow [2024-12-02 15:31:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:31:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 15:31:13,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2024-12-02 15:31:13,116 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6378737541528239 [2024-12-02 15:31:13,116 INFO L175 Difference]: Start difference. First operand has 70 places, 39 transitions, 198 flow. Second operand 7 states and 192 transitions. [2024-12-02 15:31:13,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 350 flow [2024-12-02 15:31:13,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 60 transitions, 297 flow, removed 15 selfloop flow, removed 11 redundant places. [2024-12-02 15:31:13,120 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 178 flow [2024-12-02 15:31:13,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2024-12-02 15:31:13,121 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2024-12-02 15:31:13,121 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 178 flow [2024-12-02 15:31:13,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:13,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:13,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:13,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:31:13,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:13,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:13,122 INFO L85 PathProgramCache]: Analyzing trace with hash -379333533, now seen corresponding path program 1 times [2024-12-02 15:31:13,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:13,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403510843] [2024-12-02 15:31:13,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:13,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:13,268 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 15:31:13,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:13,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403510843] [2024-12-02 15:31:13,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403510843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:13,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:13,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:31:13,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655266402] [2024-12-02 15:31:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:13,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:31:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:13,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:31:13,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:31:13,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-12-02 15:31:13,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 15:31:13,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:13,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-12-02 15:31:13,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:13,460 INFO L124 PetriNetUnfolderBase]: 329/791 cut-off events. [2024-12-02 15:31:13,460 INFO L125 PetriNetUnfolderBase]: For 1047/1051 co-relation queries the response was YES. [2024-12-02 15:31:13,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 791 events. 329/791 cut-off events. For 1047/1051 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5204 event pairs, 112 based on Foata normal form. 22/776 useless extension candidates. Maximal degree in co-relation 2024. Up to 278 conditions per place. [2024-12-02 15:31:13,464 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 25 selfloop transitions, 4 changer transitions 21/64 dead transitions. [2024-12-02 15:31:13,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 373 flow [2024-12-02 15:31:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:31:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 15:31:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 174 transitions. [2024-12-02 15:31:13,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5780730897009967 [2024-12-02 15:31:13,466 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 178 flow. Second operand 7 states and 174 transitions. [2024-12-02 15:31:13,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 373 flow [2024-12-02 15:31:13,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 349 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-12-02 15:31:13,470 INFO L231 Difference]: Finished difference. Result has 63 places, 33 transitions, 131 flow [2024-12-02 15:31:13,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=131, PETRI_PLACES=63, PETRI_TRANSITIONS=33} [2024-12-02 15:31:13,471 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2024-12-02 15:31:13,471 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 33 transitions, 131 flow [2024-12-02 15:31:13,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 15:31:13,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:13,471 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 15:31:13,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:31:13,472 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 15:31:13,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash 808350811, now seen corresponding path program 1 times [2024-12-02 15:31:13,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:13,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136797243] [2024-12-02 15:31:13,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:13,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:13,632 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 15:31:13,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:13,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136797243] [2024-12-02 15:31:13,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136797243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:13,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:13,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:31:13,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075321760] [2024-12-02 15:31:13,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:13,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:31:13,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:13,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:31:13,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:31:13,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-12-02 15:31:13,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 33 transitions, 131 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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 15:31:13,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:13,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-12-02 15:31:13,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:13,794 INFO L124 PetriNetUnfolderBase]: 133/288 cut-off events. [2024-12-02 15:31:13,794 INFO L125 PetriNetUnfolderBase]: For 347/348 co-relation queries the response was YES. [2024-12-02 15:31:13,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 288 events. 133/288 cut-off events. For 347/348 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1308 event pairs, 53 based on Foata normal form. 12/292 useless extension candidates. Maximal degree in co-relation 735. Up to 106 conditions per place. [2024-12-02 15:31:13,795 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-12-02 15:31:13,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 48 transitions, 243 flow [2024-12-02 15:31:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:31:13,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 15:31:13,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2024-12-02 15:31:13,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5087209302325582 [2024-12-02 15:31:13,797 INFO L175 Difference]: Start difference. First operand has 63 places, 33 transitions, 131 flow. Second operand 8 states and 175 transitions. [2024-12-02 15:31:13,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 48 transitions, 243 flow [2024-12-02 15:31:13,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 193 flow, removed 14 selfloop flow, removed 14 redundant places. [2024-12-02 15:31:13,799 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2024-12-02 15:31:13,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2024-12-02 15:31:13,799 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2024-12-02 15:31:13,799 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2024-12-02 15:31:13,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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 15:31:13,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-12-02 15:31:13,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-12-02 15:31:13,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-12-02 15:31:13,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-12-02 15:31:13,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-12-02 15:31:13,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:31:13,803 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:13,807 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 15:31:13,807 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:31:13,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:31:13 BasicIcfg [2024-12-02 15:31:13,814 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:31:13,814 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:31:13,814 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:31:13,814 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:31:13,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:09" (3/4) ... [2024-12-02 15:31:13,817 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:31:13,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-12-02 15:31:13,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-12-02 15:31:13,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-12-02 15:31:13,825 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-12-02 15:31:13,826 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 15:31:13,826 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:31:13,826 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 15:31:13,908 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:31:13,908 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:31:13,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:31:13,910 INFO L158 Benchmark]: Toolchain (without parser) took 5499.83ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 116.9MB in the beginning and 263.1MB in the end (delta: -146.2MB). Peak memory consumption was 133.9MB. Max. memory is 16.1GB. [2024-12-02 15:31:13,910 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:31:13,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.98ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 96.7MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:31:13,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.10ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:31:13,911 INFO L158 Benchmark]: Boogie Preprocessor took 32.85ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:31:13,911 INFO L158 Benchmark]: RCFGBuilder took 366.19ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 75.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:31:13,911 INFO L158 Benchmark]: TraceAbstraction took 4598.63ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 74.5MB in the beginning and 267.7MB in the end (delta: -193.2MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2024-12-02 15:31:13,912 INFO L158 Benchmark]: Witness Printer took 94.42ms. Allocated memory is still 419.4MB. Free memory was 267.7MB in the beginning and 263.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:31:13,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.98ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 96.7MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.10ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.85ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 366.19ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 75.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4598.63ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 74.5MB in the beginning and 267.7MB in the end (delta: -193.2MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Witness Printer took 94.42ms. Allocated memory is still 419.4MB. Free memory was 267.7MB in the beginning and 263.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 385 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 353 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 944 IncrementalHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 53 mSDtfsCounter, 944 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=4, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 161 ConstructedInterpolants, 0 QuantifiedInterpolants, 733 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 15:31:13,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f3a914-6e84-4884-b197-8eddb5c98682/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE